diff --git a/dev/tools/gen_keycodes/bin/gen_keycodes.dart b/dev/tools/gen_keycodes/bin/gen_keycodes.dart
index c8fdf13b84..25164c15ec 100644
--- a/dev/tools/gen_keycodes/bin/gen_keycodes.dart
+++ b/dev/tools/gen_keycodes/bin/gen_keycodes.dart
@@ -49,6 +49,11 @@ Future<String> getGlfwKeyCodes() async {
   return await http.read(keyCodesUri);
 }
 
+Future<String> getGtkKeyCodes() async {
+  final Uri keyCodesUri = Uri.parse('https://gitlab.gnome.org/GNOME/gtk/-/raw/master/gdk/gdkkeysyms.h');
+  return await http.read(keyCodesUri);
+}
+
 Future<void> main(List<String> rawArguments) async {
   final ArgParser argParser = ArgParser();
   argParser.addOption(
@@ -90,6 +95,13 @@ Future<void> main(List<String> rawArguments) async {
         'If --glfw-keycodes is not specified, the input will be read from the '
         'correct file in the GLFW github repository.',
   );
+  argParser.addOption(
+    'gtk-keycodes',
+    defaultsTo: null,
+    help: 'The path to where the GTK keycodes header file should be read. '
+        'If --gtk-keycodes is not specified, the input will be read from the '
+        'correct file in the GTK repository.',
+  );
   argParser.addOption(
     'windows-keycodes',
     defaultsTo: null,
@@ -107,6 +119,11 @@ Future<void> main(List<String> rawArguments) async {
     defaultsTo: path.join(flutterRoot.path, 'dev', 'tools', 'gen_keycodes', 'data', 'key_name_to_glfw_name.json'),
     help: 'The path to where the GLFW keycode to DomKey mapping is.',
   );
+  argParser.addOption(
+    'gtk-domkey',
+    defaultsTo: path.join(flutterRoot.path, 'dev', 'tools', 'gen_keycodes', 'data', 'key_name_to_gtk_name.json'),
+    help: 'The path to where the GTK keycode to DomKey mapping is.',
+  );
   argParser.addOption(
     'data',
     defaultsTo: path.join(flutterRoot.path, 'dev', 'tools', 'gen_keycodes', 'data', 'key_data.json'),
@@ -187,6 +204,13 @@ Future<void> main(List<String> rawArguments) async {
       glfwKeyCodes = File(parsedArguments['glfw-keycodes'] as String).readAsStringSync();
     }
 
+    String gtkKeyCodes;
+    if (parsedArguments['gtk-keycodes'] == null) {
+      gtkKeyCodes = await getGtkKeyCodes();
+    } else {
+      gtkKeyCodes = File(parsedArguments['gtk-keycodes'] as String).readAsStringSync();
+    }
+
     String windowsKeyCodes;
     if (parsedArguments['windows-keycodes'] == null) {
       windowsKeyCodes = await getWindowsKeyCodes();
@@ -196,9 +220,10 @@ Future<void> main(List<String> rawArguments) async {
 
     final String windowsToDomKey = File(parsedArguments['windows-domkey'] as String).readAsStringSync();
     final String glfwToDomKey = File(parsedArguments['glfw-domkey'] as String).readAsStringSync();
+    final String gtkToDomKey = File(parsedArguments['gtk-domkey'] as String).readAsStringSync();
     final String androidToDomKey = File(parsedArguments['android-domkey'] as String).readAsStringSync();
 
-    data = KeyData(hidCodes, androidScanCodes, androidKeyCodes, androidToDomKey, glfwKeyCodes, glfwToDomKey, windowsKeyCodes, windowsToDomKey);
+    data = KeyData(hidCodes, androidScanCodes, androidKeyCodes, androidToDomKey, glfwKeyCodes, glfwToDomKey, gtkKeyCodes, gtkToDomKey, windowsKeyCodes, windowsToDomKey);
 
     const JsonEncoder encoder = JsonEncoder.withIndent('  ');
     File(parsedArguments['data'] as String).writeAsStringSync(encoder.convert(data.toJson()));
@@ -221,7 +246,7 @@ Future<void> main(List<String> rawArguments) async {
   await mapsFile.writeAsString(generator.generateKeyboardMaps());
 
   final CcCodeGenerator ccCodeGenerator = CcCodeGenerator(data);
-  for (final String platform in <String>['android', 'darwin', 'glfw', 'fuchsia', 'linux', 'windows']) {
+  for (final String platform in <String>['android', 'darwin', 'glfw', 'gtk', 'fuchsia', 'linux', 'windows']) {
     final File platformFile = File(path.join(flutterRoot.path, '..', path.join('engine', 'src', 'flutter', 'shell', 'platform', platform, 'keycodes', 'keyboard_map_$platform.h')));
     if (!platformFile.existsSync()) {
       platformFile.createSync(recursive: true);
diff --git a/dev/tools/gen_keycodes/data/key_data.json b/dev/tools/gen_keycodes/data/key_data.json
index 5179151e06..e5c291cc7c 100644
--- a/dev/tools/gen_keycodes/data/key_data.json
+++ b/dev/tools/gen_keycodes/data/key_data.json
@@ -8,6 +8,7 @@
       "english": "None",
       "chromium": "none",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -23,6 +24,7 @@
         0
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -33,6 +35,10 @@
       "english": "Hyper",
       "chromium": "hyper",
       "glfw": null,
+      "gtk": [
+        "Hyper_L",
+        "Hyper_R"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -46,6 +52,10 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        65517,
+        65518
+      ],
       "windows": null
     }
   },
@@ -56,6 +66,10 @@
       "english": "Super Key",
       "chromium": "super",
       "glfw": null,
+      "gtk": [
+        "Super_L",
+        "Super_R"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -69,6 +83,10 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        65515,
+        65516
+      ],
       "windows": null
     }
   },
@@ -79,6 +97,7 @@
       "english": "Fn Lock",
       "chromium": "fnLock",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -92,6 +111,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -104,6 +124,9 @@
       "english": "Suspend",
       "chromium": "suspend",
       "glfw": null,
+      "gtk": [
+        "Suspend"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -119,6 +142,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025191
+      ],
       "windows": null
     }
   },
@@ -129,6 +155,9 @@
       "english": "Resume",
       "chromium": "resume",
       "glfw": null,
+      "gtk": [
+        "Resume"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -142,6 +171,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -152,6 +182,7 @@
       "english": "Turbo",
       "chromium": "turbo",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -165,6 +196,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -175,6 +207,7 @@
       "english": "Privacy Screen Toggle",
       "chromium": "privacyScreenToggle",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -188,6 +221,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -200,6 +234,9 @@
       "english": "Sleep",
       "chromium": "sleep",
       "glfw": null,
+      "gtk": [
+        "Sleep"
+      ],
       "windows": [
         "SLEEP"
       ]
@@ -219,6 +256,9 @@
         223
       ],
       "glfw": null,
+      "gtk": [
+        269025071
+      ],
       "windows": [
         95
       ]
@@ -233,6 +273,9 @@
       "english": "Wake Up",
       "chromium": "wakeUp",
       "glfw": null,
+      "gtk": [
+        "WakeUp"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -250,6 +293,9 @@
         224
       ],
       "glfw": null,
+      "gtk": [
+        269025067
+      ],
       "windows": null
     }
   },
@@ -260,6 +306,7 @@
       "english": "Display Toggle Int Ext",
       "chromium": "displayToggleIntExt",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -273,6 +320,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -283,6 +331,7 @@
       "english": "Usb Reserved",
       "chromium": "usbReserved",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -296,6 +345,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -306,6 +356,7 @@
       "english": "Usb Error Roll Over",
       "chromium": "usbErrorRollOver",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -319,6 +370,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -329,6 +381,7 @@
       "english": "Usb Post Fail",
       "chromium": "usbPostFail",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -342,6 +395,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -352,6 +406,7 @@
       "english": "Usb Error Undefined",
       "chromium": "usbErrorUndefined",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -365,6 +420,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -379,6 +435,9 @@
       "glfw": [
         "A"
       ],
+      "gtk": [
+        "A"
+      ],
       "windows": [
         "A"
       ]
@@ -400,6 +459,9 @@
       "glfw": [
         65
       ],
+      "gtk": [
+        65
+      ],
       "windows": [
         65
       ]
@@ -416,6 +478,9 @@
       "glfw": [
         "B"
       ],
+      "gtk": [
+        "B"
+      ],
       "windows": [
         "B"
       ]
@@ -437,6 +502,9 @@
       "glfw": [
         66
       ],
+      "gtk": [
+        66
+      ],
       "windows": [
         66
       ]
@@ -453,6 +521,9 @@
       "glfw": [
         "C"
       ],
+      "gtk": [
+        "C"
+      ],
       "windows": [
         "C"
       ]
@@ -474,6 +545,9 @@
       "glfw": [
         67
       ],
+      "gtk": [
+        67
+      ],
       "windows": [
         67
       ]
@@ -490,6 +564,9 @@
       "glfw": [
         "D"
       ],
+      "gtk": [
+        "D"
+      ],
       "windows": [
         "D"
       ]
@@ -511,6 +588,9 @@
       "glfw": [
         68
       ],
+      "gtk": [
+        68
+      ],
       "windows": [
         68
       ]
@@ -527,6 +607,9 @@
       "glfw": [
         "E"
       ],
+      "gtk": [
+        "E"
+      ],
       "windows": [
         "E"
       ]
@@ -548,6 +631,9 @@
       "glfw": [
         69
       ],
+      "gtk": [
+        69
+      ],
       "windows": [
         69
       ]
@@ -564,6 +650,9 @@
       "glfw": [
         "F"
       ],
+      "gtk": [
+        "F"
+      ],
       "windows": [
         "F"
       ]
@@ -585,6 +674,9 @@
       "glfw": [
         70
       ],
+      "gtk": [
+        70
+      ],
       "windows": [
         70
       ]
@@ -601,6 +693,9 @@
       "glfw": [
         "G"
       ],
+      "gtk": [
+        "G"
+      ],
       "windows": [
         "G"
       ]
@@ -622,6 +717,9 @@
       "glfw": [
         71
       ],
+      "gtk": [
+        71
+      ],
       "windows": [
         71
       ]
@@ -638,6 +736,9 @@
       "glfw": [
         "H"
       ],
+      "gtk": [
+        "H"
+      ],
       "windows": [
         "H"
       ]
@@ -659,6 +760,9 @@
       "glfw": [
         72
       ],
+      "gtk": [
+        72
+      ],
       "windows": [
         72
       ]
@@ -675,6 +779,9 @@
       "glfw": [
         "I"
       ],
+      "gtk": [
+        "I"
+      ],
       "windows": [
         "I"
       ]
@@ -696,6 +803,9 @@
       "glfw": [
         73
       ],
+      "gtk": [
+        73
+      ],
       "windows": [
         73
       ]
@@ -712,6 +822,9 @@
       "glfw": [
         "J"
       ],
+      "gtk": [
+        "J"
+      ],
       "windows": [
         "J"
       ]
@@ -733,6 +846,9 @@
       "glfw": [
         74
       ],
+      "gtk": [
+        74
+      ],
       "windows": [
         74
       ]
@@ -749,6 +865,9 @@
       "glfw": [
         "K"
       ],
+      "gtk": [
+        "K"
+      ],
       "windows": [
         "K"
       ]
@@ -770,6 +889,9 @@
       "glfw": [
         75
       ],
+      "gtk": [
+        75
+      ],
       "windows": [
         75
       ]
@@ -786,6 +908,9 @@
       "glfw": [
         "L"
       ],
+      "gtk": [
+        "L"
+      ],
       "windows": [
         "L"
       ]
@@ -807,6 +932,9 @@
       "glfw": [
         76
       ],
+      "gtk": [
+        76
+      ],
       "windows": [
         76
       ]
@@ -823,6 +951,9 @@
       "glfw": [
         "M"
       ],
+      "gtk": [
+        "M"
+      ],
       "windows": [
         "M"
       ]
@@ -844,6 +975,9 @@
       "glfw": [
         77
       ],
+      "gtk": [
+        77
+      ],
       "windows": [
         77
       ]
@@ -860,6 +994,9 @@
       "glfw": [
         "N"
       ],
+      "gtk": [
+        "N"
+      ],
       "windows": [
         "N"
       ]
@@ -881,6 +1018,9 @@
       "glfw": [
         78
       ],
+      "gtk": [
+        78
+      ],
       "windows": [
         78
       ]
@@ -897,6 +1037,9 @@
       "glfw": [
         "O"
       ],
+      "gtk": [
+        "O"
+      ],
       "windows": [
         "O"
       ]
@@ -918,6 +1061,9 @@
       "glfw": [
         79
       ],
+      "gtk": [
+        79
+      ],
       "windows": [
         79
       ]
@@ -934,6 +1080,9 @@
       "glfw": [
         "P"
       ],
+      "gtk": [
+        "P"
+      ],
       "windows": [
         "P"
       ]
@@ -955,6 +1104,9 @@
       "glfw": [
         80
       ],
+      "gtk": [
+        80
+      ],
       "windows": [
         80
       ]
@@ -971,6 +1123,9 @@
       "glfw": [
         "Q"
       ],
+      "gtk": [
+        "Q"
+      ],
       "windows": [
         "Q"
       ]
@@ -992,6 +1147,9 @@
       "glfw": [
         81
       ],
+      "gtk": [
+        81
+      ],
       "windows": [
         81
       ]
@@ -1008,6 +1166,9 @@
       "glfw": [
         "R"
       ],
+      "gtk": [
+        "R"
+      ],
       "windows": [
         "R"
       ]
@@ -1029,6 +1190,9 @@
       "glfw": [
         82
       ],
+      "gtk": [
+        82
+      ],
       "windows": [
         82
       ]
@@ -1045,6 +1209,9 @@
       "glfw": [
         "S"
       ],
+      "gtk": [
+        "S"
+      ],
       "windows": [
         "S"
       ]
@@ -1066,6 +1233,9 @@
       "glfw": [
         83
       ],
+      "gtk": [
+        83
+      ],
       "windows": [
         83
       ]
@@ -1082,6 +1252,9 @@
       "glfw": [
         "T"
       ],
+      "gtk": [
+        "T"
+      ],
       "windows": [
         "T"
       ]
@@ -1103,6 +1276,9 @@
       "glfw": [
         84
       ],
+      "gtk": [
+        84
+      ],
       "windows": [
         84
       ]
@@ -1119,6 +1295,9 @@
       "glfw": [
         "U"
       ],
+      "gtk": [
+        "U"
+      ],
       "windows": [
         "U"
       ]
@@ -1140,6 +1319,9 @@
       "glfw": [
         85
       ],
+      "gtk": [
+        85
+      ],
       "windows": [
         85
       ]
@@ -1156,6 +1338,9 @@
       "glfw": [
         "V"
       ],
+      "gtk": [
+        "V"
+      ],
       "windows": [
         "V"
       ]
@@ -1177,6 +1362,9 @@
       "glfw": [
         86
       ],
+      "gtk": [
+        86
+      ],
       "windows": [
         86
       ]
@@ -1193,6 +1381,9 @@
       "glfw": [
         "W"
       ],
+      "gtk": [
+        "W"
+      ],
       "windows": [
         "W"
       ]
@@ -1214,6 +1405,9 @@
       "glfw": [
         87
       ],
+      "gtk": [
+        87
+      ],
       "windows": [
         87
       ]
@@ -1230,6 +1424,9 @@
       "glfw": [
         "X"
       ],
+      "gtk": [
+        "X"
+      ],
       "windows": [
         "X"
       ]
@@ -1251,6 +1448,9 @@
       "glfw": [
         88
       ],
+      "gtk": [
+        88
+      ],
       "windows": [
         88
       ]
@@ -1267,6 +1467,9 @@
       "glfw": [
         "Y"
       ],
+      "gtk": [
+        "Y"
+      ],
       "windows": [
         "Y"
       ]
@@ -1288,6 +1491,9 @@
       "glfw": [
         89
       ],
+      "gtk": [
+        89
+      ],
       "windows": [
         89
       ]
@@ -1304,6 +1510,9 @@
       "glfw": [
         "Z"
       ],
+      "gtk": [
+        "Z"
+      ],
       "windows": [
         "Z"
       ]
@@ -1325,6 +1534,9 @@
       "glfw": [
         90
       ],
+      "gtk": [
+        90
+      ],
       "windows": [
         90
       ]
@@ -1341,6 +1553,9 @@
       "glfw": [
         "1"
       ],
+      "gtk": [
+        "1"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1360,6 +1575,9 @@
       "glfw": [
         49
       ],
+      "gtk": [
+        49
+      ],
       "windows": null
     }
   },
@@ -1374,6 +1592,9 @@
       "glfw": [
         "2"
       ],
+      "gtk": [
+        "2"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1393,6 +1614,9 @@
       "glfw": [
         50
       ],
+      "gtk": [
+        50
+      ],
       "windows": null
     }
   },
@@ -1407,6 +1631,9 @@
       "glfw": [
         "3"
       ],
+      "gtk": [
+        "3"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1426,6 +1653,9 @@
       "glfw": [
         51
       ],
+      "gtk": [
+        51
+      ],
       "windows": null
     }
   },
@@ -1440,6 +1670,9 @@
       "glfw": [
         "4"
       ],
+      "gtk": [
+        "4"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1459,6 +1692,9 @@
       "glfw": [
         52
       ],
+      "gtk": [
+        52
+      ],
       "windows": null
     }
   },
@@ -1473,6 +1709,9 @@
       "glfw": [
         "5"
       ],
+      "gtk": [
+        "5"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1492,6 +1731,9 @@
       "glfw": [
         53
       ],
+      "gtk": [
+        53
+      ],
       "windows": null
     }
   },
@@ -1506,6 +1748,9 @@
       "glfw": [
         "6"
       ],
+      "gtk": [
+        "6"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1525,6 +1770,9 @@
       "glfw": [
         54
       ],
+      "gtk": [
+        54
+      ],
       "windows": null
     }
   },
@@ -1539,6 +1787,9 @@
       "glfw": [
         "7"
       ],
+      "gtk": [
+        "7"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1558,6 +1809,9 @@
       "glfw": [
         55
       ],
+      "gtk": [
+        55
+      ],
       "windows": null
     }
   },
@@ -1572,6 +1826,9 @@
       "glfw": [
         "8"
       ],
+      "gtk": [
+        "8"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1591,6 +1848,9 @@
       "glfw": [
         56
       ],
+      "gtk": [
+        56
+      ],
       "windows": null
     }
   },
@@ -1605,6 +1865,9 @@
       "glfw": [
         "9"
       ],
+      "gtk": [
+        "9"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1624,6 +1887,9 @@
       "glfw": [
         57
       ],
+      "gtk": [
+        57
+      ],
       "windows": null
     }
   },
@@ -1638,6 +1904,9 @@
       "glfw": [
         "0"
       ],
+      "gtk": [
+        "0"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -1657,6 +1926,9 @@
       "glfw": [
         48
       ],
+      "gtk": [
+        48
+      ],
       "windows": null
     }
   },
@@ -1671,6 +1943,10 @@
       "glfw": [
         "ENTER"
       ],
+      "gtk": [
+        "Return",
+        "Enter"
+      ],
       "windows": [
         "RETURN"
       ]
@@ -1692,6 +1968,9 @@
       "glfw": [
         257
       ],
+      "gtk": [
+        65293
+      ],
       "windows": [
         13
       ]
@@ -1708,6 +1987,9 @@
       "glfw": [
         "ESCAPE"
       ],
+      "gtk": [
+        "Escape"
+      ],
       "windows": [
         "ESCAPE"
       ]
@@ -1729,6 +2011,9 @@
       "glfw": [
         256
       ],
+      "gtk": [
+        65307
+      ],
       "windows": [
         27
       ]
@@ -1745,6 +2030,9 @@
       "glfw": [
         "BACKSPACE"
       ],
+      "gtk": [
+        "BackSpace"
+      ],
       "windows": [
         "BACK"
       ]
@@ -1766,6 +2054,9 @@
       "glfw": [
         259
       ],
+      "gtk": [
+        65288
+      ],
       "windows": [
         8
       ]
@@ -1782,6 +2073,10 @@
       "glfw": [
         "TAB"
       ],
+      "gtk": [
+        "Tab",
+        "KP_Tab"
+      ],
       "windows": [
         "TAB"
       ]
@@ -1803,6 +2098,10 @@
       "glfw": [
         258
       ],
+      "gtk": [
+        65289,
+        65417
+      ],
       "windows": [
         9
       ]
@@ -1819,6 +2118,10 @@
       "glfw": [
         "SPACE"
       ],
+      "gtk": [
+        "space",
+        "KP_Space"
+      ],
       "windows": [
         "SPACE"
       ]
@@ -1840,6 +2143,10 @@
       "glfw": [
         32
       ],
+      "gtk": [
+        32,
+        65408
+      ],
       "windows": [
         32
       ]
@@ -1856,6 +2163,9 @@
       "glfw": [
         "MINUS"
       ],
+      "gtk": [
+        "minus"
+      ],
       "windows": [
         "OEM_MINUS"
       ]
@@ -1877,6 +2187,9 @@
       "glfw": [
         45
       ],
+      "gtk": [
+        45
+      ],
       "windows": [
         189
       ]
@@ -1893,6 +2206,9 @@
       "glfw": [
         "EQUAL"
       ],
+      "gtk": [
+        "equal"
+      ],
       "windows": [
         "OEM_PLUS"
       ]
@@ -1914,6 +2230,9 @@
       "glfw": [
         61
       ],
+      "gtk": [
+        61
+      ],
       "windows": [
         187
       ]
@@ -1930,6 +2249,9 @@
       "glfw": [
         "LEFT_BRACKET"
       ],
+      "gtk": [
+        "bracketleft"
+      ],
       "windows": [
         "OEM_4"
       ]
@@ -1951,6 +2273,9 @@
       "glfw": [
         91
       ],
+      "gtk": [
+        91
+      ],
       "windows": [
         219
       ]
@@ -1967,6 +2292,9 @@
       "glfw": [
         "RIGHT_BRACKET"
       ],
+      "gtk": [
+        "bracketright"
+      ],
       "windows": [
         "OEM_6"
       ]
@@ -1988,6 +2316,9 @@
       "glfw": [
         93
       ],
+      "gtk": [
+        93
+      ],
       "windows": [
         221
       ]
@@ -2004,6 +2335,9 @@
       "glfw": [
         "BACKSLASH"
       ],
+      "gtk": [
+        "backslash"
+      ],
       "windows": [
         "OEM_5"
       ]
@@ -2026,6 +2360,9 @@
       "glfw": [
         92
       ],
+      "gtk": [
+        92
+      ],
       "windows": [
         220
       ]
@@ -2042,6 +2379,9 @@
       "glfw": [
         "SEMICOLON"
       ],
+      "gtk": [
+        "semicolon"
+      ],
       "windows": [
         "OEM_1"
       ]
@@ -2063,6 +2403,9 @@
       "glfw": [
         59
       ],
+      "gtk": [
+        59
+      ],
       "windows": [
         186
       ]
@@ -2079,6 +2422,9 @@
       "glfw": [
         "APOSTROPHE"
       ],
+      "gtk": [
+        "apostrophe"
+      ],
       "windows": [
         "OEM_7"
       ]
@@ -2100,6 +2446,9 @@
       "glfw": [
         39
       ],
+      "gtk": [
+        39
+      ],
       "windows": [
         222
       ]
@@ -2116,6 +2465,9 @@
       "glfw": [
         "GRAVE_ACCENT"
       ],
+      "gtk": [
+        "quoteleft"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -2135,6 +2487,9 @@
       "glfw": [
         96
       ],
+      "gtk": [
+        96
+      ],
       "windows": null
     }
   },
@@ -2149,6 +2504,9 @@
       "glfw": [
         "COMMA"
       ],
+      "gtk": [
+        "comma"
+      ],
       "windows": [
         "OEM_COMMA"
       ]
@@ -2170,6 +2528,9 @@
       "glfw": [
         44
       ],
+      "gtk": [
+        44
+      ],
       "windows": [
         188
       ]
@@ -2186,6 +2547,9 @@
       "glfw": [
         "PERIOD"
       ],
+      "gtk": [
+        "period"
+      ],
       "windows": [
         "OEM_PERIOD"
       ]
@@ -2207,6 +2571,9 @@
       "glfw": [
         46
       ],
+      "gtk": [
+        46
+      ],
       "windows": [
         190
       ]
@@ -2223,6 +2590,9 @@
       "glfw": [
         "SLASH"
       ],
+      "gtk": [
+        "slash"
+      ],
       "windows": [
         "OEM_2"
       ]
@@ -2244,6 +2614,9 @@
       "glfw": [
         47
       ],
+      "gtk": [
+        47
+      ],
       "windows": [
         191
       ]
@@ -2260,6 +2633,9 @@
       "glfw": [
         "CAPS_LOCK"
       ],
+      "gtk": [
+        "Caps_Lock"
+      ],
       "windows": [
         "CAPITAL"
       ]
@@ -2281,6 +2657,9 @@
       "glfw": [
         280
       ],
+      "gtk": [
+        65509
+      ],
       "windows": [
         20
       ]
@@ -2297,6 +2676,10 @@
       "glfw": [
         "F1"
       ],
+      "gtk": [
+        "F1",
+        "KP_F1"
+      ],
       "windows": [
         "F1"
       ]
@@ -2318,6 +2701,10 @@
       "glfw": [
         290
       ],
+      "gtk": [
+        65470,
+        65425
+      ],
       "windows": [
         112
       ]
@@ -2334,6 +2721,10 @@
       "glfw": [
         "F2"
       ],
+      "gtk": [
+        "F2",
+        "KP_F2"
+      ],
       "windows": [
         "F2"
       ]
@@ -2355,6 +2746,10 @@
       "glfw": [
         291
       ],
+      "gtk": [
+        65471,
+        65426
+      ],
       "windows": [
         113
       ]
@@ -2371,6 +2766,10 @@
       "glfw": [
         "F3"
       ],
+      "gtk": [
+        "F3",
+        "KP_F3"
+      ],
       "windows": [
         "F3"
       ]
@@ -2392,6 +2791,10 @@
       "glfw": [
         292
       ],
+      "gtk": [
+        65472,
+        65427
+      ],
       "windows": [
         114
       ]
@@ -2408,6 +2811,10 @@
       "glfw": [
         "F4"
       ],
+      "gtk": [
+        "F4",
+        "KP_F4"
+      ],
       "windows": [
         "F4"
       ]
@@ -2429,6 +2836,10 @@
       "glfw": [
         293
       ],
+      "gtk": [
+        65473,
+        65428
+      ],
       "windows": [
         115
       ]
@@ -2445,6 +2856,9 @@
       "glfw": [
         "F5"
       ],
+      "gtk": [
+        "F5"
+      ],
       "windows": [
         "F5"
       ]
@@ -2466,6 +2880,9 @@
       "glfw": [
         294
       ],
+      "gtk": [
+        65474
+      ],
       "windows": [
         116
       ]
@@ -2482,6 +2899,9 @@
       "glfw": [
         "F6"
       ],
+      "gtk": [
+        "F6"
+      ],
       "windows": [
         "F6"
       ]
@@ -2503,6 +2923,9 @@
       "glfw": [
         295
       ],
+      "gtk": [
+        65475
+      ],
       "windows": [
         117
       ]
@@ -2519,6 +2942,9 @@
       "glfw": [
         "F7"
       ],
+      "gtk": [
+        "F7"
+      ],
       "windows": [
         "F7"
       ]
@@ -2540,6 +2966,9 @@
       "glfw": [
         296
       ],
+      "gtk": [
+        65476
+      ],
       "windows": [
         118
       ]
@@ -2556,6 +2985,9 @@
       "glfw": [
         "F8"
       ],
+      "gtk": [
+        "F8"
+      ],
       "windows": [
         "F8"
       ]
@@ -2577,6 +3009,9 @@
       "glfw": [
         297
       ],
+      "gtk": [
+        65477
+      ],
       "windows": [
         119
       ]
@@ -2593,6 +3028,9 @@
       "glfw": [
         "F9"
       ],
+      "gtk": [
+        "F9"
+      ],
       "windows": [
         "F9"
       ]
@@ -2614,6 +3052,9 @@
       "glfw": [
         298
       ],
+      "gtk": [
+        65478
+      ],
       "windows": [
         120
       ]
@@ -2630,6 +3071,9 @@
       "glfw": [
         "F10"
       ],
+      "gtk": [
+        "F10"
+      ],
       "windows": [
         "F10"
       ]
@@ -2651,6 +3095,9 @@
       "glfw": [
         299
       ],
+      "gtk": [
+        65479
+      ],
       "windows": [
         121
       ]
@@ -2667,6 +3114,9 @@
       "glfw": [
         "F11"
       ],
+      "gtk": [
+        "F11"
+      ],
       "windows": [
         "F11"
       ]
@@ -2688,6 +3138,9 @@
       "glfw": [
         300
       ],
+      "gtk": [
+        65480
+      ],
       "windows": [
         122
       ]
@@ -2704,6 +3157,9 @@
       "glfw": [
         "F12"
       ],
+      "gtk": [
+        "F12"
+      ],
       "windows": [
         "F12"
       ]
@@ -2725,6 +3181,9 @@
       "glfw": [
         301
       ],
+      "gtk": [
+        65481
+      ],
       "windows": [
         123
       ]
@@ -2741,6 +3200,9 @@
       "glfw": [
         "PRINT_SCREEN"
       ],
+      "gtk": [
+        "3270_PrintScreen"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -2760,6 +3222,9 @@
       "glfw": [
         283
       ],
+      "gtk": [
+        64797
+      ],
       "windows": null
     }
   },
@@ -2772,6 +3237,9 @@
       "english": "Scroll Lock",
       "chromium": "scrollLock",
       "glfw": null,
+      "gtk": [
+        "Scroll_Lock"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -2789,6 +3257,9 @@
         116
       ],
       "glfw": null,
+      "gtk": [
+        65300
+      ],
       "windows": null
     }
   },
@@ -2803,6 +3274,9 @@
       "glfw": [
         "PAUSE"
       ],
+      "gtk": [
+        "Pause"
+      ],
       "windows": [
         "PAUSE"
       ]
@@ -2825,6 +3299,9 @@
       "glfw": [
         284
       ],
+      "gtk": [
+        65299
+      ],
       "windows": [
         19
       ]
@@ -2841,6 +3318,10 @@
       "glfw": [
         "INSERT"
       ],
+      "gtk": [
+        "Insert",
+        "KP_Insert"
+      ],
       "windows": [
         "INSERT"
       ]
@@ -2862,6 +3343,10 @@
       "glfw": [
         260
       ],
+      "gtk": [
+        65379,
+        65438
+      ],
       "windows": [
         45
       ]
@@ -2878,6 +3363,10 @@
       "glfw": [
         "HOME"
       ],
+      "gtk": [
+        "Home",
+        "KP_Home"
+      ],
       "windows": [
         "HOME"
       ]
@@ -2899,6 +3388,10 @@
       "glfw": [
         268
       ],
+      "gtk": [
+        65360,
+        65429
+      ],
       "windows": [
         36
       ]
@@ -2915,6 +3408,10 @@
       "glfw": [
         "PAGE_UP"
       ],
+      "gtk": [
+        "Page_Up",
+        "KP_Page_Up"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -2935,6 +3432,10 @@
       "glfw": [
         266
       ],
+      "gtk": [
+        65365,
+        65434
+      ],
       "windows": null
     }
   },
@@ -2949,6 +3450,10 @@
       "glfw": [
         "DELETE"
       ],
+      "gtk": [
+        "Delete",
+        "KP_Delete"
+      ],
       "windows": [
         "DELETE"
       ]
@@ -2970,6 +3475,10 @@
       "glfw": [
         261
       ],
+      "gtk": [
+        65535,
+        65439
+      ],
       "windows": [
         46
       ]
@@ -2986,6 +3495,10 @@
       "glfw": [
         "END"
       ],
+      "gtk": [
+        "End",
+        "KP_End"
+      ],
       "windows": [
         "END"
       ]
@@ -3007,6 +3520,10 @@
       "glfw": [
         269
       ],
+      "gtk": [
+        65367,
+        65436
+      ],
       "windows": [
         35
       ]
@@ -3023,6 +3540,10 @@
       "glfw": [
         "PAGE_DOWN"
       ],
+      "gtk": [
+        "Page_Down",
+        "KP_Page_Down"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -3043,6 +3564,10 @@
       "glfw": [
         267
       ],
+      "gtk": [
+        65366,
+        65435
+      ],
       "windows": null
     }
   },
@@ -3057,6 +3582,10 @@
       "glfw": [
         "RIGHT"
       ],
+      "gtk": [
+        "Right",
+        "KP_Right"
+      ],
       "windows": [
         "RIGHT"
       ]
@@ -3078,6 +3607,10 @@
       "glfw": [
         262
       ],
+      "gtk": [
+        65363,
+        65432
+      ],
       "windows": [
         39
       ]
@@ -3094,6 +3627,10 @@
       "glfw": [
         "LEFT"
       ],
+      "gtk": [
+        "Left",
+        "KP_Left"
+      ],
       "windows": [
         "LEFT"
       ]
@@ -3115,6 +3652,10 @@
       "glfw": [
         263
       ],
+      "gtk": [
+        65361,
+        65430
+      ],
       "windows": [
         37
       ]
@@ -3131,6 +3672,10 @@
       "glfw": [
         "DOWN"
       ],
+      "gtk": [
+        "Down",
+        "KP_Down"
+      ],
       "windows": [
         "DOWN"
       ]
@@ -3152,6 +3697,10 @@
       "glfw": [
         264
       ],
+      "gtk": [
+        65364,
+        65433
+      ],
       "windows": [
         40
       ]
@@ -3168,6 +3717,10 @@
       "glfw": [
         "UP"
       ],
+      "gtk": [
+        "Up",
+        "KP_Up"
+      ],
       "windows": [
         "UP"
       ]
@@ -3189,6 +3742,10 @@
       "glfw": [
         265
       ],
+      "gtk": [
+        65362,
+        65431
+      ],
       "windows": [
         38
       ]
@@ -3205,6 +3762,9 @@
       "glfw": [
         "NUM_LOCK"
       ],
+      "gtk": [
+        "Num_Lock"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -3224,6 +3784,9 @@
       "glfw": [
         282
       ],
+      "gtk": [
+        65407
+      ],
       "windows": null
     }
   },
@@ -3238,6 +3801,9 @@
       "glfw": [
         "KP_DIVIDE"
       ],
+      "gtk": [
+        "KP_Divide"
+      ],
       "windows": [
         "DIVIDE"
       ]
@@ -3259,6 +3825,9 @@
       "glfw": [
         331
       ],
+      "gtk": [
+        65455
+      ],
       "windows": [
         111
       ]
@@ -3275,6 +3844,9 @@
       "glfw": [
         "KP_MULTIPLY"
       ],
+      "gtk": [
+        "KP_Multiply"
+      ],
       "windows": [
         "MULTIPLY"
       ]
@@ -3296,6 +3868,9 @@
       "glfw": [
         332
       ],
+      "gtk": [
+        65450
+      ],
       "windows": [
         106
       ]
@@ -3312,6 +3887,9 @@
       "glfw": [
         "NUMPAD_SUBTRACT"
       ],
+      "gtk": [
+        "KP_Subtract"
+      ],
       "windows": [
         "SUBTRACT"
       ]
@@ -3331,6 +3909,9 @@
         156
       ],
       "glfw": null,
+      "gtk": [
+        65453
+      ],
       "windows": [
         109
       ]
@@ -3347,6 +3928,9 @@
       "glfw": [
         "KP_ADD"
       ],
+      "gtk": [
+        "KP_Add"
+      ],
       "windows": [
         "ADD"
       ]
@@ -3368,6 +3952,9 @@
       "glfw": [
         334
       ],
+      "gtk": [
+        65451
+      ],
       "windows": [
         107
       ]
@@ -3384,6 +3971,9 @@
       "glfw": [
         "KP_ENTER"
       ],
+      "gtk": [
+        "KP_Enter"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -3403,6 +3993,9 @@
       "glfw": [
         335
       ],
+      "gtk": [
+        65421
+      ],
       "windows": null
     }
   },
@@ -3417,6 +4010,9 @@
       "glfw": [
         "KP_1"
       ],
+      "gtk": [
+        "KP_1"
+      ],
       "windows": [
         "NUMPAD1"
       ]
@@ -3438,6 +4034,9 @@
       "glfw": [
         321
       ],
+      "gtk": [
+        65457
+      ],
       "windows": [
         97
       ]
@@ -3454,6 +4053,9 @@
       "glfw": [
         "KP_2"
       ],
+      "gtk": [
+        "KP_2"
+      ],
       "windows": [
         "NUMPAD2"
       ]
@@ -3475,6 +4077,9 @@
       "glfw": [
         322
       ],
+      "gtk": [
+        65458
+      ],
       "windows": [
         98
       ]
@@ -3491,6 +4096,9 @@
       "glfw": [
         "KP_3"
       ],
+      "gtk": [
+        "KP_3"
+      ],
       "windows": [
         "NUMPAD3"
       ]
@@ -3512,6 +4120,9 @@
       "glfw": [
         323
       ],
+      "gtk": [
+        65459
+      ],
       "windows": [
         99
       ]
@@ -3528,6 +4139,9 @@
       "glfw": [
         "KP_4"
       ],
+      "gtk": [
+        "KP_4"
+      ],
       "windows": [
         "NUMPAD4"
       ]
@@ -3549,6 +4163,9 @@
       "glfw": [
         324
       ],
+      "gtk": [
+        65460
+      ],
       "windows": [
         100
       ]
@@ -3565,6 +4182,9 @@
       "glfw": [
         "KP_5"
       ],
+      "gtk": [
+        "KP_5"
+      ],
       "windows": [
         "NUMPAD5"
       ]
@@ -3586,6 +4206,9 @@
       "glfw": [
         325
       ],
+      "gtk": [
+        65461
+      ],
       "windows": [
         101
       ]
@@ -3602,6 +4225,9 @@
       "glfw": [
         "KP_6"
       ],
+      "gtk": [
+        "KP_6"
+      ],
       "windows": [
         "NUMPAD6"
       ]
@@ -3623,6 +4249,9 @@
       "glfw": [
         326
       ],
+      "gtk": [
+        65462
+      ],
       "windows": [
         102
       ]
@@ -3639,6 +4268,9 @@
       "glfw": [
         "KP_7"
       ],
+      "gtk": [
+        "KP_7"
+      ],
       "windows": [
         "NUMPAD7"
       ]
@@ -3660,6 +4292,9 @@
       "glfw": [
         327
       ],
+      "gtk": [
+        65463
+      ],
       "windows": [
         103
       ]
@@ -3676,6 +4311,9 @@
       "glfw": [
         "KP_8"
       ],
+      "gtk": [
+        "KP_8"
+      ],
       "windows": [
         "NUMPAD8"
       ]
@@ -3697,6 +4335,9 @@
       "glfw": [
         328
       ],
+      "gtk": [
+        65464
+      ],
       "windows": [
         104
       ]
@@ -3713,6 +4354,9 @@
       "glfw": [
         "KP_9"
       ],
+      "gtk": [
+        "KP_9"
+      ],
       "windows": [
         "NUMPAD9"
       ]
@@ -3734,6 +4378,9 @@
       "glfw": [
         329
       ],
+      "gtk": [
+        65465
+      ],
       "windows": [
         105
       ]
@@ -3750,6 +4397,9 @@
       "glfw": [
         "KP_0"
       ],
+      "gtk": [
+        "KP_0"
+      ],
       "windows": [
         "NUMPAD0"
       ]
@@ -3771,6 +4421,9 @@
       "glfw": [
         320
       ],
+      "gtk": [
+        65456
+      ],
       "windows": [
         96
       ]
@@ -3787,6 +4440,9 @@
       "glfw": [
         "KP_DECIMAL"
       ],
+      "gtk": [
+        "KP_Decimal"
+      ],
       "windows": [
         "DECIMAL"
       ]
@@ -3808,6 +4464,9 @@
       "glfw": [
         330
       ],
+      "gtk": [
+        65454
+      ],
       "windows": [
         110
       ]
@@ -3820,6 +4479,7 @@
       "english": "Intl Backslash",
       "chromium": "intlBackslash",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -3833,6 +4493,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -3847,6 +4508,9 @@
       "glfw": [
         "MENU"
       ],
+      "gtk": [
+        "Menu"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -3867,6 +4531,9 @@
       "glfw": [
         348
       ],
+      "gtk": [
+        65383
+      ],
       "windows": null
     }
   },
@@ -3879,6 +4546,9 @@
       "english": "Power",
       "chromium": "power",
       "glfw": null,
+      "gtk": [
+        "PowerOff"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -3897,6 +4567,9 @@
         26
       ],
       "glfw": null,
+      "gtk": [
+        269025066
+      ],
       "windows": null
     }
   },
@@ -3911,6 +4584,9 @@
       "glfw": [
         "KP_EQUAL"
       ],
+      "gtk": [
+        "KP_Equal"
+      ],
       "windows": [
         "OEM_NEC_EQUAL"
       ]
@@ -3932,6 +4608,9 @@
       "glfw": [
         336
       ],
+      "gtk": [
+        65469
+      ],
       "windows": [
         146
       ]
@@ -3948,6 +4627,9 @@
       "glfw": [
         "F13"
       ],
+      "gtk": [
+        "F13"
+      ],
       "windows": [
         "F13"
       ]
@@ -3967,6 +4649,9 @@
       "glfw": [
         302
       ],
+      "gtk": [
+        65482
+      ],
       "windows": [
         124
       ]
@@ -3983,6 +4668,9 @@
       "glfw": [
         "F14"
       ],
+      "gtk": [
+        "F14"
+      ],
       "windows": [
         "F14"
       ]
@@ -4002,6 +4690,9 @@
       "glfw": [
         303
       ],
+      "gtk": [
+        65483
+      ],
       "windows": [
         125
       ]
@@ -4018,6 +4709,9 @@
       "glfw": [
         "F15"
       ],
+      "gtk": [
+        "F15"
+      ],
       "windows": [
         "F15"
       ]
@@ -4037,6 +4731,9 @@
       "glfw": [
         304
       ],
+      "gtk": [
+        65484
+      ],
       "windows": [
         126
       ]
@@ -4053,6 +4750,9 @@
       "glfw": [
         "F16"
       ],
+      "gtk": [
+        "F16"
+      ],
       "windows": [
         "F16"
       ]
@@ -4072,6 +4772,9 @@
       "glfw": [
         305
       ],
+      "gtk": [
+        65485
+      ],
       "windows": [
         127
       ]
@@ -4088,6 +4791,9 @@
       "glfw": [
         "F17"
       ],
+      "gtk": [
+        "F17"
+      ],
       "windows": [
         "F17"
       ]
@@ -4107,6 +4813,9 @@
       "glfw": [
         306
       ],
+      "gtk": [
+        65486
+      ],
       "windows": [
         128
       ]
@@ -4123,6 +4832,9 @@
       "glfw": [
         "F18"
       ],
+      "gtk": [
+        "F18"
+      ],
       "windows": [
         "F18"
       ]
@@ -4142,6 +4854,9 @@
       "glfw": [
         307
       ],
+      "gtk": [
+        65487
+      ],
       "windows": [
         129
       ]
@@ -4158,6 +4873,9 @@
       "glfw": [
         "F19"
       ],
+      "gtk": [
+        "F19"
+      ],
       "windows": [
         "F19"
       ]
@@ -4177,6 +4895,9 @@
       "glfw": [
         308
       ],
+      "gtk": [
+        65488
+      ],
       "windows": [
         130
       ]
@@ -4193,6 +4914,9 @@
       "glfw": [
         "F20"
       ],
+      "gtk": [
+        "F20"
+      ],
       "windows": [
         "F20"
       ]
@@ -4212,6 +4936,9 @@
       "glfw": [
         309
       ],
+      "gtk": [
+        65489
+      ],
       "windows": [
         131
       ]
@@ -4228,6 +4955,9 @@
       "glfw": [
         "F21"
       ],
+      "gtk": [
+        "F21"
+      ],
       "windows": [
         "F21"
       ]
@@ -4247,6 +4977,9 @@
       "glfw": [
         310
       ],
+      "gtk": [
+        65490
+      ],
       "windows": [
         132
       ]
@@ -4263,6 +4996,9 @@
       "glfw": [
         "F22"
       ],
+      "gtk": [
+        "F22"
+      ],
       "windows": [
         "F22"
       ]
@@ -4282,6 +5018,9 @@
       "glfw": [
         311
       ],
+      "gtk": [
+        65491
+      ],
       "windows": [
         133
       ]
@@ -4298,6 +5037,9 @@
       "glfw": [
         "F23"
       ],
+      "gtk": [
+        "F23"
+      ],
       "windows": [
         "F23"
       ]
@@ -4317,6 +5059,9 @@
       "glfw": [
         312
       ],
+      "gtk": [
+        65492
+      ],
       "windows": [
         134
       ]
@@ -4331,6 +5076,9 @@
       "english": "F24",
       "chromium": "f24",
       "glfw": null,
+      "gtk": [
+        "F24"
+      ],
       "windows": [
         "F24"
       ]
@@ -4348,6 +5096,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        65493
+      ],
       "windows": [
         135
       ]
@@ -4362,6 +5113,9 @@
       "english": "Open",
       "chromium": "open",
       "glfw": null,
+      "gtk": [
+        "Open"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4377,6 +5131,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025131
+      ],
       "windows": null
     }
   },
@@ -4389,6 +5146,9 @@
       "english": "Help",
       "chromium": "help",
       "glfw": null,
+      "gtk": [
+        "Help"
+      ],
       "windows": [
         "HELP"
       ]
@@ -4408,6 +5168,9 @@
         259
       ],
       "glfw": null,
+      "gtk": [
+        65386
+      ],
       "windows": [
         47
       ]
@@ -4422,6 +5185,9 @@
       "english": "Select",
       "chromium": "select",
       "glfw": null,
+      "gtk": [
+        "Select"
+      ],
       "windows": [
         "SELECT"
       ]
@@ -4441,6 +5207,9 @@
         23
       ],
       "glfw": null,
+      "gtk": [
+        65376
+      ],
       "windows": [
         41
       ]
@@ -4455,6 +5224,7 @@
       "english": "Again",
       "chromium": "again",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4470,6 +5240,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4482,6 +5253,9 @@
       "english": "Undo",
       "chromium": "undo",
       "glfw": null,
+      "gtk": [
+        "Undo"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4497,6 +5271,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        65381
+      ],
       "windows": null
     }
   },
@@ -4509,6 +5286,7 @@
       "english": "Cut",
       "chromium": "cut",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4526,6 +5304,7 @@
         277
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4538,6 +5317,10 @@
       "english": "Copy",
       "chromium": "copy",
       "glfw": null,
+      "gtk": [
+        "Copy",
+        "3270_Copy"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4555,6 +5338,10 @@
         278
       ],
       "glfw": null,
+      "gtk": [
+        269025111,
+        64789
+      ],
       "windows": null
     }
   },
@@ -4567,6 +5354,9 @@
       "english": "Paste",
       "chromium": "paste",
       "glfw": null,
+      "gtk": [
+        "Paste"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4584,6 +5374,9 @@
         279
       ],
       "glfw": null,
+      "gtk": [
+        269025133
+      ],
       "windows": null
     }
   },
@@ -4596,6 +5389,9 @@
       "english": "Find",
       "chromium": "find",
       "glfw": null,
+      "gtk": [
+        "Find"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4611,6 +5407,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        65384
+      ],
       "windows": null
     }
   },
@@ -4623,6 +5422,9 @@
       "english": "Audio Volume Mute",
       "chromium": "volumeMute",
       "glfw": null,
+      "gtk": [
+        "AudioMute"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4640,6 +5442,9 @@
         164
       ],
       "glfw": null,
+      "gtk": [
+        269025042
+      ],
       "windows": null
     }
   },
@@ -4652,6 +5457,9 @@
       "english": "Audio Volume Up",
       "chromium": "volumeUp",
       "glfw": null,
+      "gtk": [
+        "AudioRaiseVolume"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4669,6 +5477,9 @@
         24
       ],
       "glfw": null,
+      "gtk": [
+        269025043
+      ],
       "windows": null
     }
   },
@@ -4681,6 +5492,9 @@
       "english": "Audio Volume Down",
       "chromium": "volumeDown",
       "glfw": null,
+      "gtk": [
+        "AudioLowerVolume"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4698,6 +5512,9 @@
         25
       ],
       "glfw": null,
+      "gtk": [
+        269025041
+      ],
       "windows": null
     }
   },
@@ -4710,6 +5527,7 @@
       "english": "Numpad Comma",
       "chromium": "numpadComma",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4728,6 +5546,7 @@
         159
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4738,6 +5557,7 @@
       "english": "Intl Ro",
       "chromium": "intlRo",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4751,6 +5571,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4761,6 +5582,9 @@
       "english": "Kana Mode",
       "chromium": "kanaMode",
       "glfw": null,
+      "gtk": [
+        "kana_switch"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4774,6 +5598,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        65406
+      ],
       "windows": null
     }
   },
@@ -4784,6 +5611,9 @@
       "english": "Intl Yen",
       "chromium": "intlYen",
       "glfw": null,
+      "gtk": [
+        "yen"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -4797,6 +5627,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        165
+      ],
       "windows": null
     }
   },
@@ -4809,6 +5642,7 @@
       "english": "Convert",
       "chromium": "convert",
       "glfw": null,
+      "gtk": null,
       "windows": [
         "CONVERT"
       ]
@@ -4828,6 +5662,7 @@
         214
       ],
       "glfw": null,
+      "gtk": null,
       "windows": [
         28
       ]
@@ -4842,6 +5677,7 @@
       "english": "Non Convert",
       "chromium": "nonConvert",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4859,6 +5695,7 @@
         213
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4869,6 +5706,7 @@
       "english": "Lang 1",
       "chromium": "lang1",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4882,6 +5720,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4892,6 +5731,7 @@
       "english": "Lang 2",
       "chromium": "lang2",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4905,6 +5745,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4917,6 +5758,7 @@
       "english": "Lang 3",
       "chromium": "lang3",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4932,6 +5774,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4944,6 +5787,7 @@
       "english": "Lang 4",
       "chromium": "lang4",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4959,6 +5803,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4969,6 +5814,7 @@
       "english": "Lang 5",
       "chromium": "lang5",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -4982,6 +5828,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -4992,6 +5839,7 @@
       "english": "Abort",
       "chromium": "abort",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5005,6 +5853,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5017,6 +5866,7 @@
       "english": "Props",
       "chromium": "props",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5032,6 +5882,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5044,6 +5895,7 @@
       "english": "Numpad Paren Left",
       "chromium": "numpadParenLeft",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5061,6 +5913,7 @@
         162
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5073,6 +5926,7 @@
       "english": "Numpad Paren Right",
       "chromium": "numpadParenRight",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5090,6 +5944,7 @@
         163
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5100,6 +5955,7 @@
       "english": "Numpad Backspace",
       "chromium": "numpadBackspace",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5113,6 +5969,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5123,6 +5980,7 @@
       "english": "Numpad Memory Store",
       "chromium": "numpadMemoryStore",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5136,6 +5994,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5146,6 +6005,7 @@
       "english": "Numpad Memory Recall",
       "chromium": "numpadMemoryRecall",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5159,6 +6019,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5169,6 +6030,7 @@
       "english": "Numpad Memory Clear",
       "chromium": "numpadMemoryClear",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5182,6 +6044,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5192,6 +6055,7 @@
       "english": "Numpad Memory Add",
       "chromium": "numpadMemoryAdd",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5205,6 +6069,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5215,6 +6080,7 @@
       "english": "Numpad Memory Subtract",
       "chromium": "numpadMemorySubtract",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5228,6 +6094,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5238,6 +6105,7 @@
       "english": "Numpad Sign Change",
       "chromium": "numpadSignChange",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5251,6 +6119,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5261,6 +6130,7 @@
       "english": "Numpad Clear",
       "chromium": "numpadClear",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5274,6 +6144,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5284,6 +6155,7 @@
       "english": "Numpad Clear Entry",
       "chromium": "numpadClearEntry",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5297,6 +6169,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5311,6 +6184,9 @@
       "glfw": [
         "LEFT_CONTROL"
       ],
+      "gtk": [
+        "Control_L"
+      ],
       "windows": [
         "LCONTROL"
       ]
@@ -5332,6 +6208,9 @@
       "glfw": [
         341
       ],
+      "gtk": [
+        65507
+      ],
       "windows": [
         162
       ]
@@ -5348,6 +6227,9 @@
       "glfw": [
         "LEFT_SHIFT"
       ],
+      "gtk": [
+        "Shift_L"
+      ],
       "windows": [
         "LSHIFT"
       ]
@@ -5369,6 +6251,9 @@
       "glfw": [
         340
       ],
+      "gtk": [
+        65505
+      ],
       "windows": [
         160
       ]
@@ -5385,6 +6270,9 @@
       "glfw": [
         "LEFT_ALT"
       ],
+      "gtk": [
+        "Alt_L"
+      ],
       "windows": [
         "LMENU"
       ]
@@ -5406,6 +6294,9 @@
       "glfw": [
         342
       ],
+      "gtk": [
+        65513
+      ],
       "windows": [
         164
       ]
@@ -5422,6 +6313,9 @@
       "glfw": [
         "LEFT_SUPER"
       ],
+      "gtk": [
+        "Meta_L"
+      ],
       "windows": [
         "LWIN"
       ]
@@ -5443,6 +6337,9 @@
       "glfw": [
         343
       ],
+      "gtk": [
+        65511
+      ],
       "windows": [
         91
       ]
@@ -5459,6 +6356,9 @@
       "glfw": [
         "RIGHT_CONTROL"
       ],
+      "gtk": [
+        "Control_R"
+      ],
       "windows": [
         "RCONTROL"
       ]
@@ -5480,6 +6380,9 @@
       "glfw": [
         345
       ],
+      "gtk": [
+        65508
+      ],
       "windows": [
         163
       ]
@@ -5496,6 +6399,9 @@
       "glfw": [
         "RIGHT_SHIFT"
       ],
+      "gtk": [
+        "Shift_R"
+      ],
       "windows": [
         "RSHIFT"
       ]
@@ -5517,6 +6423,9 @@
       "glfw": [
         344
       ],
+      "gtk": [
+        65506
+      ],
       "windows": [
         161
       ]
@@ -5533,6 +6442,9 @@
       "glfw": [
         "RIGHT_ALT"
       ],
+      "gtk": [
+        "Alt_R"
+      ],
       "windows": [
         "RMENU"
       ]
@@ -5554,6 +6466,9 @@
       "glfw": [
         346
       ],
+      "gtk": [
+        65514
+      ],
       "windows": [
         165
       ]
@@ -5570,6 +6485,9 @@
       "glfw": [
         "RIGHT_SUPER"
       ],
+      "gtk": [
+        "Meta_R"
+      ],
       "windows": [
         "RWIN"
       ]
@@ -5591,6 +6509,9 @@
       "glfw": [
         347
       ],
+      "gtk": [
+        65512
+      ],
       "windows": [
         92
       ]
@@ -5605,6 +6526,7 @@
       "english": "Info",
       "chromium": "info",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5622,6 +6544,7 @@
         165
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5634,6 +6557,7 @@
       "english": "Closed Caption Toggle",
       "chromium": "closedCaptionToggle",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5649,6 +6573,7 @@
         175
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5661,6 +6586,9 @@
       "english": "Brightness Up",
       "chromium": "brightnessUp",
       "glfw": null,
+      "gtk": [
+        "MonBrightnessUp"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -5678,6 +6606,9 @@
         221
       ],
       "glfw": null,
+      "gtk": [
+        269025026
+      ],
       "windows": null
     }
   },
@@ -5690,6 +6621,9 @@
       "english": "Brightness Down",
       "chromium": "brightnessDown",
       "glfw": null,
+      "gtk": [
+        "MonBrightnessDown"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -5707,6 +6641,9 @@
         220
       ],
       "glfw": null,
+      "gtk": [
+        269025027
+      ],
       "windows": null
     }
   },
@@ -5717,6 +6654,7 @@
       "english": "Brightness Toggle",
       "chromium": "brightnessToggle",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5730,6 +6668,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5740,6 +6679,7 @@
       "english": "Brightness Minimum",
       "chromium": "brightnessMinimum",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5753,6 +6693,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5763,6 +6704,7 @@
       "english": "Brightness Maximum",
       "chromium": "brightnessMaximum",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5776,6 +6718,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5786,6 +6729,7 @@
       "english": "Brightness Auto",
       "chromium": "brightnessAuto",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5799,6 +6743,65 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
+      "windows": null
+    }
+  },
+  "kbdIllumUp": {
+    "names": {
+      "domkey": null,
+      "android": null,
+      "english": "Kbd Illum Up",
+      "chromium": "kbdIllumUp",
+      "glfw": null,
+      "gtk": [
+        "KbdBrightnessUp"
+      ],
+      "windows": null
+    },
+    "scanCodes": {
+      "android": null,
+      "usb": 786553,
+      "linux": 230,
+      "xkb": 238,
+      "windows": null,
+      "macos": null
+    },
+    "keyCodes": {
+      "android": null,
+      "glfw": null,
+      "gtk": [
+        269025029
+      ],
+      "windows": null
+    }
+  },
+  "kbdIllumDown": {
+    "names": {
+      "domkey": null,
+      "android": null,
+      "english": "Kbd Illum Down",
+      "chromium": "kbdIllumDown",
+      "glfw": null,
+      "gtk": [
+        "KbdBrightnessDown"
+      ],
+      "windows": null
+    },
+    "scanCodes": {
+      "android": null,
+      "usb": 786554,
+      "linux": 229,
+      "xkb": 237,
+      "windows": null,
+      "macos": null
+    },
+    "keyCodes": {
+      "android": null,
+      "glfw": null,
+      "gtk": [
+        269025030
+      ],
       "windows": null
     }
   },
@@ -5811,6 +6814,7 @@
       "english": "Media Last",
       "chromium": "mediaLast",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5826,6 +6830,7 @@
         229
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5836,6 +6841,9 @@
       "english": "Launch Phone",
       "chromium": "launchPhone",
       "glfw": null,
+      "gtk": [
+        "Phone"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -5849,6 +6857,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025134
+      ],
       "windows": null
     }
   },
@@ -5859,6 +6870,7 @@
       "english": "Program Guide",
       "chromium": "programGuide",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5872,6 +6884,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5884,6 +6897,7 @@
       "english": "Exit",
       "chromium": "exit",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5899,6 +6913,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5911,6 +6926,7 @@
       "english": "Channel Up",
       "chromium": "channelUp",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5928,6 +6944,7 @@
         166
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5940,6 +6957,7 @@
       "english": "Channel Down",
       "chromium": "channelDown",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -5957,6 +6975,7 @@
         167
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -5969,6 +6988,10 @@
       "english": "Media Play",
       "chromium": "mediaPlay",
       "glfw": null,
+      "gtk": [
+        "AudioPlay",
+        "3270_Play"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -5987,6 +7010,10 @@
         126
       ],
       "glfw": null,
+      "gtk": [
+        269025044,
+        64790
+      ],
       "windows": null
     }
   },
@@ -5999,6 +7026,9 @@
       "english": "Media Pause",
       "chromium": "mediaPause",
       "glfw": null,
+      "gtk": [
+        "AudioPause"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6016,6 +7046,9 @@
         127
       ],
       "glfw": null,
+      "gtk": [
+        269025073
+      ],
       "windows": null
     }
   },
@@ -6028,6 +7061,9 @@
       "english": "Media Record",
       "chromium": "mediaRecord",
       "glfw": null,
+      "gtk": [
+        "AudioRecord"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6045,6 +7081,9 @@
         130
       ],
       "glfw": null,
+      "gtk": [
+        269025052
+      ],
       "windows": null
     }
   },
@@ -6057,6 +7096,9 @@
       "english": "Media Fast Forward",
       "chromium": "mediaFastForward",
       "glfw": null,
+      "gtk": [
+        "AudioForward"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6074,6 +7116,9 @@
         90
       ],
       "glfw": null,
+      "gtk": [
+        269025175
+      ],
       "windows": null
     }
   },
@@ -6086,6 +7131,9 @@
       "english": "Media Rewind",
       "chromium": "mediaRewind",
       "glfw": null,
+      "gtk": [
+        "AudioRewind"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6103,6 +7151,9 @@
         89
       ],
       "glfw": null,
+      "gtk": [
+        269025086
+      ],
       "windows": null
     }
   },
@@ -6115,6 +7166,9 @@
       "english": "Media Track Next",
       "chromium": "mediaTrackNext",
       "glfw": null,
+      "gtk": [
+        "AudioNext"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6132,6 +7186,9 @@
         87
       ],
       "glfw": null,
+      "gtk": [
+        269025047
+      ],
       "windows": null
     }
   },
@@ -6144,6 +7201,9 @@
       "english": "Media Track Previous",
       "chromium": "mediaTrackPrevious",
       "glfw": null,
+      "gtk": [
+        "AudioPrev"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6161,6 +7221,9 @@
         88
       ],
       "glfw": null,
+      "gtk": [
+        269025046
+      ],
       "windows": null
     }
   },
@@ -6173,6 +7236,9 @@
       "english": "Media Stop",
       "chromium": "mediaStop",
       "glfw": null,
+      "gtk": [
+        "AudioStop"
+      ],
       "windows": [
         "MEDIA_STOP"
       ]
@@ -6193,6 +7259,9 @@
         86
       ],
       "glfw": null,
+      "gtk": [
+        269025045
+      ],
       "windows": [
         178
       ]
@@ -6207,6 +7276,9 @@
       "english": "Eject",
       "chromium": "eject",
       "glfw": null,
+      "gtk": [
+        "Eject"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6225,6 +7297,9 @@
         129
       ],
       "glfw": null,
+      "gtk": [
+        269025068
+      ],
       "windows": null
     }
   },
@@ -6237,6 +7312,7 @@
       "english": "Media Play Pause",
       "chromium": "mediaPlayPause",
       "glfw": null,
+      "gtk": null,
       "windows": [
         "MEDIA_PLAY_PAUSE"
       ]
@@ -6256,6 +7332,7 @@
         85
       ],
       "glfw": null,
+      "gtk": null,
       "windows": [
         179
       ]
@@ -6268,6 +7345,7 @@
       "english": "Speech Input Toggle",
       "chromium": "speechInputToggle",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6281,6 +7359,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6293,6 +7372,7 @@
       "english": "Bass Boost",
       "chromium": "bassBoost",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6308,6 +7388,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6318,6 +7399,7 @@
       "english": "Media Select",
       "chromium": "mediaSelect",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6331,6 +7413,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6341,6 +7424,7 @@
       "english": "Launch Word Processor",
       "chromium": "launchWordProcessor",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6354,6 +7438,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6364,6 +7449,7 @@
       "english": "Launch Spreadsheet",
       "chromium": "launchSpreadsheet",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6377,6 +7463,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6389,6 +7476,9 @@
       "english": "Launch Mail",
       "chromium": "launchMail",
       "glfw": null,
+      "gtk": [
+        "Mail"
+      ],
       "windows": [
         "LAUNCH_MAIL"
       ]
@@ -6409,6 +7499,9 @@
         65
       ],
       "glfw": null,
+      "gtk": [
+        269025049
+      ],
       "windows": [
         180
       ]
@@ -6423,6 +7516,7 @@
       "english": "Launch Contacts",
       "chromium": "launchContacts",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6440,6 +7534,7 @@
         207
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6452,6 +7547,9 @@
       "english": "Launch Calendar",
       "chromium": "launchCalendar",
       "glfw": null,
+      "gtk": [
+        "Calendar"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6469,6 +7567,9 @@
         208
       ],
       "glfw": null,
+      "gtk": [
+        269025056
+      ],
       "windows": null
     }
   },
@@ -6479,6 +7580,7 @@
       "english": "Launch App2",
       "chromium": "launchApp2",
       "glfw": null,
+      "gtk": null,
       "windows": [
         "LAUNCH_APP2"
       ]
@@ -6494,6 +7596,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": [
         183
       ]
@@ -6506,6 +7609,7 @@
       "english": "Launch App1",
       "chromium": "launchApp1",
       "glfw": null,
+      "gtk": null,
       "windows": [
         "LAUNCH_APP1"
       ]
@@ -6521,6 +7625,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": [
         182
       ]
@@ -6533,6 +7638,9 @@
       "english": "Launch Internet Browser",
       "chromium": "launchInternetBrowser",
       "glfw": null,
+      "gtk": [
+        "WWW"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6546,6 +7654,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025070
+      ],
       "windows": null
     }
   },
@@ -6556,6 +7667,9 @@
       "english": "Log Off",
       "chromium": "logOff",
       "glfw": null,
+      "gtk": [
+        "LogOff"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6569,6 +7683,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025121
+      ],
       "windows": null
     }
   },
@@ -6579,6 +7696,7 @@
       "english": "Lock Screen",
       "chromium": "lockScreen",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6592,6 +7710,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6602,6 +7721,7 @@
       "english": "Launch Control Panel",
       "chromium": "launchControlPanel",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6615,6 +7735,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6625,6 +7746,7 @@
       "english": "Select Task",
       "chromium": "selectTask",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6638,6 +7760,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6648,6 +7771,9 @@
       "english": "Launch Documents",
       "chromium": "launchDocuments",
       "glfw": null,
+      "gtk": [
+        "Document"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6661,6 +7787,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6671,6 +7798,9 @@
       "english": "Spell Check",
       "chromium": "spellCheck",
       "glfw": null,
+      "gtk": [
+        "Spell"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6684,6 +7814,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025148
+      ],
       "windows": null
     }
   },
@@ -6694,6 +7827,7 @@
       "english": "Launch Keyboard Layout",
       "chromium": "launchKeyboardLayout",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6707,6 +7841,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6717,6 +7852,9 @@
       "english": "Launch Screen Saver",
       "chromium": "launchScreenSaver",
       "glfw": null,
+      "gtk": [
+        "ScreenSaver"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6730,6 +7868,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025069
+      ],
       "windows": null
     }
   },
@@ -6742,6 +7883,7 @@
       "english": "Launch Assistant",
       "chromium": "launchAssistant",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -6757,6 +7899,7 @@
         219
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -6767,6 +7910,9 @@
       "english": "Launch Audio Browser",
       "chromium": "launchAudioBrowser",
       "glfw": null,
+      "gtk": [
+        "Music"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6780,6 +7926,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025170
+      ],
       "windows": null
     }
   },
@@ -6792,6 +7941,9 @@
       "english": "New Key",
       "chromium": "new",
       "glfw": null,
+      "gtk": [
+        "New"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6807,6 +7959,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025128
+      ],
       "windows": null
     }
   },
@@ -6820,6 +7975,9 @@
       "english": "Close",
       "chromium": "close",
       "glfw": null,
+      "gtk": [
+        "Close"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6838,6 +7996,9 @@
         128
       ],
       "glfw": null,
+      "gtk": [
+        269025110
+      ],
       "windows": null
     }
   },
@@ -6848,6 +8009,9 @@
       "english": "Save",
       "chromium": "save",
       "glfw": null,
+      "gtk": [
+        "Save"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -6861,6 +8025,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025143
+      ],
       "windows": null
     }
   },
@@ -6873,6 +8040,9 @@
       "english": "Print",
       "chromium": "print",
       "glfw": null,
+      "gtk": [
+        "Print"
+      ],
       "windows": [
         "PRINT"
       ]
@@ -6890,6 +8060,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        65377
+      ],
       "windows": [
         42
       ]
@@ -6904,6 +8077,9 @@
       "english": "Browser Search",
       "chromium": "browserSearch",
       "glfw": null,
+      "gtk": [
+        "Search"
+      ],
       "windows": [
         "BROWSER_SEARCH"
       ]
@@ -6923,6 +8099,9 @@
         84
       ],
       "glfw": null,
+      "gtk": [
+        269025051
+      ],
       "windows": [
         170
       ]
@@ -6935,6 +8114,9 @@
       "english": "Browser Home",
       "chromium": "browserHome",
       "glfw": null,
+      "gtk": [
+        "HomePage"
+      ],
       "windows": [
         "BROWSER_HOME"
       ]
@@ -6950,6 +8132,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025048
+      ],
       "windows": [
         172
       ]
@@ -6962,6 +8147,9 @@
       "english": "Browser Back",
       "chromium": "browserBack",
       "glfw": null,
+      "gtk": [
+        "Back"
+      ],
       "windows": [
         "BROWSER_BACK"
       ]
@@ -6977,6 +8165,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025062
+      ],
       "windows": [
         166
       ]
@@ -6991,6 +8182,9 @@
       "english": "Browser Forward",
       "chromium": "browserForward",
       "glfw": null,
+      "gtk": [
+        "Forward"
+      ],
       "windows": [
         "BROWSER_FORWARD"
       ]
@@ -7010,6 +8204,9 @@
         125
       ],
       "glfw": null,
+      "gtk": [
+        269025063
+      ],
       "windows": [
         167
       ]
@@ -7022,6 +8219,9 @@
       "english": "Browser Stop",
       "chromium": "browserStop",
       "glfw": null,
+      "gtk": [
+        "Stop"
+      ],
       "windows": [
         "BROWSER_STOP"
       ]
@@ -7037,6 +8237,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025064
+      ],
       "windows": [
         169
       ]
@@ -7049,6 +8252,9 @@
       "english": "Browser Refresh",
       "chromium": "browserRefresh",
       "glfw": null,
+      "gtk": [
+        "Refresh"
+      ],
       "windows": [
         "BROWSER_REFRESH"
       ]
@@ -7064,6 +8270,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025065
+      ],
       "windows": [
         168
       ]
@@ -7078,6 +8287,9 @@
       "english": "Browser Favorites",
       "chromium": "browserFavorites",
       "glfw": null,
+      "gtk": [
+        "Favorites"
+      ],
       "windows": [
         "BROWSER_FAVORITES"
       ]
@@ -7097,6 +8309,9 @@
         174
       ],
       "glfw": null,
+      "gtk": [
+        269025072
+      ],
       "windows": [
         171
       ]
@@ -7111,6 +8326,9 @@
       "english": "Zoom In",
       "chromium": "zoomIn",
       "glfw": null,
+      "gtk": [
+        "ZoomIn"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -7126,6 +8344,9 @@
         168
       ],
       "glfw": null,
+      "gtk": [
+        269025163
+      ],
       "windows": null
     }
   },
@@ -7138,6 +8359,9 @@
       "english": "Zoom Out",
       "chromium": "zoomOut",
       "glfw": null,
+      "gtk": [
+        "ZoomOut"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -7153,6 +8377,9 @@
         169
       ],
       "glfw": null,
+      "gtk": [
+        269025164
+      ],
       "windows": null
     }
   },
@@ -7165,6 +8392,7 @@
       "english": "Zoom Toggle",
       "chromium": "zoomToggle",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7180,6 +8408,7 @@
         255
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7192,6 +8421,9 @@
       "english": "Redo",
       "chromium": "redo",
       "glfw": null,
+      "gtk": [
+        "Redo"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -7207,6 +8439,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        65382
+      ],
       "windows": null
     }
   },
@@ -7217,6 +8452,9 @@
       "english": "Mail Reply",
       "chromium": "mailReply",
       "glfw": null,
+      "gtk": [
+        "Reply"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -7230,6 +8468,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025138
+      ],
       "windows": null
     }
   },
@@ -7240,6 +8481,9 @@
       "english": "Mail Forward",
       "chromium": "mailForward",
       "glfw": null,
+      "gtk": [
+        "MailForward"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -7253,6 +8497,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025168
+      ],
       "windows": null
     }
   },
@@ -7263,6 +8510,9 @@
       "english": "Mail Send",
       "chromium": "mailSend",
       "glfw": null,
+      "gtk": [
+        "Send"
+      ],
       "windows": null
     },
     "scanCodes": {
@@ -7276,6 +8526,9 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": [
+        269025147
+      ],
       "windows": null
     }
   },
@@ -7286,6 +8539,7 @@
       "english": "Keyboard Layout Select",
       "chromium": "keyboardLayoutSelect",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7299,6 +8553,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7309,6 +8564,7 @@
       "english": "Show All Windows",
       "chromium": "showAllWindows",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7322,6 +8578,7 @@
     "keyCodes": {
       "android": null,
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7334,6 +8591,7 @@
       "english": "Game Button 1",
       "chromium": "button1",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7352,6 +8610,7 @@
         188
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7364,6 +8623,7 @@
       "english": "Game Button 2",
       "chromium": "button2",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7382,6 +8642,7 @@
         189
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7394,6 +8655,7 @@
       "english": "Game Button 3",
       "chromium": "button3",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7412,6 +8674,7 @@
         190
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7424,6 +8687,7 @@
       "english": "Game Button 4",
       "chromium": "button4",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7442,6 +8706,7 @@
         191
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7454,6 +8719,7 @@
       "english": "Game Button 5",
       "chromium": "button5",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7472,6 +8738,7 @@
         192
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7484,6 +8751,7 @@
       "english": "Game Button 6",
       "chromium": "button6",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7502,6 +8770,7 @@
         193
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7514,6 +8783,7 @@
       "english": "Game Button 7",
       "chromium": "button7",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7532,6 +8802,7 @@
         194
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7544,6 +8815,7 @@
       "english": "Game Button 8",
       "chromium": "button8",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7562,6 +8834,7 @@
         195
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7574,6 +8847,7 @@
       "english": "Game Button 9",
       "chromium": "button9",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7592,6 +8866,7 @@
         196
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7604,6 +8879,7 @@
       "english": "Game Button 10",
       "chromium": "button10",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7622,6 +8898,7 @@
         197
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7634,6 +8911,7 @@
       "english": "Game Button 11",
       "chromium": "button11",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7652,6 +8930,7 @@
         198
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7664,6 +8943,7 @@
       "english": "Game Button 12",
       "chromium": "button12",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7682,6 +8962,7 @@
         199
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7694,6 +8975,7 @@
       "english": "Game Button 13",
       "chromium": "button13",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7712,6 +8994,7 @@
         200
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7724,6 +9007,7 @@
       "english": "Game Button 14",
       "chromium": "button14",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7742,6 +9026,7 @@
         201
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7754,6 +9039,7 @@
       "english": "Game Button 15",
       "chromium": "button15",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7772,6 +9058,7 @@
         202
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7784,6 +9071,7 @@
       "english": "Game Button 16",
       "chromium": "button16",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7802,6 +9090,7 @@
         203
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7814,6 +9103,7 @@
       "english": "Game Button A",
       "chromium": "buttonA",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7831,6 +9121,7 @@
         96
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7843,6 +9134,7 @@
       "english": "Game Button B",
       "chromium": "buttonB",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7860,6 +9152,7 @@
         97
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7872,6 +9165,7 @@
       "english": "Game Button C",
       "chromium": "buttonC",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7889,6 +9183,7 @@
         98
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7901,6 +9196,7 @@
       "english": "Game Button Left 1",
       "chromium": "buttonL1",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7918,6 +9214,7 @@
         102
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7930,6 +9227,7 @@
       "english": "Game Button Left 2",
       "chromium": "buttonL2",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7947,6 +9245,7 @@
         104
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7959,6 +9258,7 @@
       "english": "Game Button Mode",
       "chromium": "buttonMode",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -7976,6 +9276,7 @@
         110
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -7988,6 +9289,7 @@
       "english": "Game Button Right 1",
       "chromium": "buttonR1",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8005,6 +9307,7 @@
         103
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8017,6 +9320,7 @@
       "english": "Game Button Right 2",
       "chromium": "buttonR2",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8034,6 +9338,7 @@
         105
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8046,6 +9351,7 @@
       "english": "Game Button Select",
       "chromium": "buttonSelect",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8063,6 +9369,7 @@
         109
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8075,6 +9382,7 @@
       "english": "Game Button Start",
       "chromium": "buttonStart",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8092,6 +9400,7 @@
         108
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8104,6 +9413,7 @@
       "english": "Game Button Thumb Left",
       "chromium": "buttonThumbl",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8121,6 +9431,7 @@
         106
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8133,6 +9444,7 @@
       "english": "Game Button Thumb Right",
       "chromium": "buttonThumbr",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8150,6 +9462,7 @@
         107
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8162,6 +9475,7 @@
       "english": "Game Button X",
       "chromium": "buttonX",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8179,6 +9493,7 @@
         99
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8191,6 +9506,7 @@
       "english": "Game Button Y",
       "chromium": "buttonY",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8208,6 +9524,7 @@
         100
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8220,6 +9537,7 @@
       "english": "Game Button Z",
       "chromium": "buttonZ",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8237,6 +9555,7 @@
         101
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   },
@@ -8249,6 +9568,7 @@
       "english": "Fn",
       "chromium": "fn",
       "glfw": null,
+      "gtk": null,
       "windows": null
     },
     "scanCodes": {
@@ -8266,6 +9586,7 @@
         119
       ],
       "glfw": null,
+      "gtk": null,
       "windows": null
     }
   }
diff --git a/dev/tools/gen_keycodes/data/key_name_to_gtk_name.json b/dev/tools/gen_keycodes/data/key_name_to_gtk_name.json
new file mode 100644
index 0000000000..13337edc16
--- /dev/null
+++ b/dev/tools/gen_keycodes/data/key_name_to_gtk_name.json
@@ -0,0 +1,179 @@
+{
+  "altLeft": ["Alt_L"],
+  "altRight": ["Alt_R"],
+  "arrowDown": ["Down", "KP_Down"],
+  "arrowLeft": ["Left", "KP_Left"],
+  "arrowRight": ["Right", "KP_Right"],
+  "arrowUp": ["Up", "KP_Up"],
+  "audioVolumeDown": ["AudioLowerVolume"],
+  "audioVolumeMute": ["AudioMute"],
+  "audioVolumeUp": ["AudioRaiseVolume"],
+  "backquote": ["quoteleft"],
+  "backslash": ["backslash"],
+  "backspace": ["BackSpace"],
+  "bracketLeft": ["bracketleft"],
+  "bracketRight": ["bracketright"],
+  "brightnessDown": ["MonBrightnessDown"],
+  "brightnessUp": ["MonBrightnessUp"],
+  "browserBack": ["Back"],
+  "browserFavorites": ["Favorites"],
+  "browserFavourites": ["Favourites"],
+  "browserForward": ["Forward"],
+  "browserHome": ["HomePage"],
+  "browserRefresh": ["Refresh"],
+  "browserSearch": ["Search"],
+  "browserStop": ["Stop"],
+  "capsLock": ["Caps_Lock"],
+  "close": ["Close"],
+  "comma": ["comma"],
+  "contextMenu": ["Menu"],
+  "controlLeft": ["Control_L"],
+  "controlRight": ["Control_R"],
+  "copy": ["Copy", "3270_Copy"],
+  "delete": ["Delete", "KP_Delete"],
+  "digit0": ["0"],
+  "digit1": ["1"],
+  "digit2": ["2"],
+  "digit3": ["3"],
+  "digit4": ["4"],
+  "digit5": ["5"],
+  "digit6": ["6"],
+  "digit7": ["7"],
+  "digit8": ["8"],
+  "digit9": ["9"],
+  "eject": ["Eject"],
+  "end": ["End", "KP_End"],
+  "enter": ["Return", "Enter"],
+  "equal": ["equal"],
+  "escape": ["Escape"],
+  "f1": ["F1", "KP_F1"],
+  "f2": ["F2", "KP_F2"],
+  "f3": ["F3", "KP_F3"],
+  "f4": ["F4", "KP_F4"],
+  "f5": ["F5"],
+  "f6": ["F6"],
+  "f7": ["F7"],
+  "f8": ["F8"],
+  "f9": ["F9"],
+  "f10": ["F10"],
+  "f11": ["F11"],
+  "f12": ["F12"],
+  "f13": ["F13"],
+  "f14": ["F14"],
+  "f15": ["F15"],
+  "f16": ["F16"],
+  "f17": ["F17"],
+  "f18": ["F18"],
+  "f19": ["F19"],
+  "f20": ["F20"],
+  "f21": ["F21"],
+  "f22": ["F22"],
+  "f23": ["F23"],
+  "f24": ["F24"],
+  "f25": ["F25"],
+  "find": ["Find"],
+  "help": ["Help"],
+  "home": ["Home", "KP_Home"],
+  "hyper": ["Hyper_L", "Hyper_R"],
+  "insert": ["Insert", "KP_Insert"],
+  "intlYen": ["yen"],
+  "kanaMode": ["kana_switch"],
+  "kbdIllumDown": ["KbdBrightnessDown"],
+  "kbdIllumUp": ["KbdBrightnessUp"],
+  "keyA": ["A"],
+  "keyB": ["B"],
+  "keyC": ["C"],
+  "keyD": ["D"],
+  "keyE": ["E"],
+  "keyF": ["F"],
+  "keyG": ["G"],
+  "keyH": ["H"],
+  "keyI": ["I"],
+  "keyJ": ["J"],
+  "keyK": ["K"],
+  "keyL": ["L"],
+  "keyM": ["M"],
+  "keyN": ["N"],
+  "keyO": ["O"],
+  "keyP": ["P"],
+  "keyQ": ["Q"],
+  "keyR": ["R"],
+  "keyS": ["S"],
+  "keyT": ["T"],
+  "keyU": ["U"],
+  "keyV": ["V"],
+  "keyW": ["W"],
+  "keyX": ["X"],
+  "keyY": ["Y"],
+  "keyZ": ["Z"],
+  "launchAudioBrowser": ["Music"],
+  "launchCalendar": ["Calendar"],
+  "launchDocuments": ["Document"],
+  "launchInternetBrowser": ["WWW"],
+  "launchMail": ["Mail"],
+  "launchPhone": ["Phone"],
+  "launchScreenSaver": ["ScreenSaver"],
+  "logOff": ["LogOff"],
+  "mailForward": ["MailForward"],
+  "mailReply": ["Reply"],
+  "mailSend": ["Send"],
+  "mediaFastForward": ["AudioForward"],
+  "mediaPause": ["AudioPause"],
+  "mediaPlay": ["AudioPlay", "3270_Play"],
+  "mediaRecord": ["AudioRecord"],
+  "mediaRewind": ["AudioRewind"],
+  "mediaStop": ["AudioStop"],
+  "mediaTrackNext": ["AudioNext"],
+  "mediaTrackPrevious": ["AudioPrev"],
+  "metaLeft": ["Meta_L"],
+  "metaRight": ["Meta_R"],
+  "minus": ["minus"],
+  "newKey": ["New"],
+  "numLock": ["Num_Lock"],
+  "numpad0": ["KP_0"],
+  "numpad1": ["KP_1"],
+  "numpad2": ["KP_2"],
+  "numpad3": ["KP_3"],
+  "numpad4": ["KP_4"],
+  "numpad5": ["KP_5"],
+  "numpad6": ["KP_6"],
+  "numpad7": ["KP_7"],
+  "numpad8": ["KP_8"],
+  "numpad9": ["KP_9"],
+  "numpadAdd": ["KP_Add"],
+  "numpadDecimal": ["KP_Decimal"],
+  "numpadDivide": ["KP_Divide"],
+  "numpadEnter": ["KP_Enter"],
+  "numpadEqual": ["KP_Equal"],
+  "numpadMultiply": ["KP_Multiply"],
+  "numpadSubtract": ["KP_Subtract"],
+  "open": ["Open"],
+  "pageDown": ["Page_Down", "KP_Page_Down"],
+  "pageUp": ["Page_Up", "KP_Page_Up"],
+  "paste": ["Paste"],
+  "pause": ["Pause"],
+  "period": ["period"],
+  "power": ["PowerOff"],
+  "print": ["Print"],
+  "printScreen": ["3270_PrintScreen"],
+  "quote": ["apostrophe"],
+  "redo": ["Redo"],
+  "resume": ["Resume"],
+  "save": ["Save"],
+  "scrollLock": ["Scroll_Lock"],
+  "select": ["Select"],
+  "semicolon": ["semicolon"],
+  "shiftLeft": ["Shift_L"],
+  "shiftRight": ["Shift_R"],
+  "slash": ["slash"],
+  "sleep": ["Sleep"],
+  "space": ["space", "KP_Space"],
+  "spellCheck": ["Spell"],
+  "superKey": ["Super_L", "Super_R"],
+  "suspend": ["Suspend"],
+  "tab": ["Tab", "KP_Tab"],
+  "undo": ["Undo"],
+  "wakeUp": ["WakeUp"],
+  "zoomIn": ["ZoomIn"],
+  "zoomOut": ["ZoomOut"]
+}
diff --git a/dev/tools/gen_keycodes/data/keyboard_map_gtk_cc.tmpl b/dev/tools/gen_keycodes/data/keyboard_map_gtk_cc.tmpl
new file mode 100644
index 0000000000..9645a22090
--- /dev/null
+++ b/dev/tools/gen_keycodes/data/keyboard_map_gtk_cc.tmpl
@@ -0,0 +1,24 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <map>
+
+// DO NOT EDIT -- DO NOT EDIT -- DO NOT EDIT
+// This file is generated by flutter/flutter@dev/tools/gen_keycodes/bin/gen_keycodes.dart and
+// should not be edited directly.
+//
+// Edit the template dev/tools/gen_keycodes/data/keyboard_maps_gtk_cxx.tmpl instead.
+// See dev/tools/gen_keycodes/README.md for more information.
+
+/// Maps GTK-specific key codes to the matching [LogicalKeyboardKey].
+const std::map<int, int> g_gtk_to_logical_key = {
+@@@GTK_KEY_CODE_MAP@@@
+};
+
+/// A map of GTK key codes which have printable representations, but appear
+/// on the number pad. Used to provide different key objects for keys like
+/// KEY_EQUALS and NUMPAD_EQUALS.
+const std::map<int, int> g_gtk_numpad_map = {
+@@@GTK_NUMPAD_MAP@@@
+};
diff --git a/dev/tools/gen_keycodes/data/keyboard_maps.tmpl b/dev/tools/gen_keycodes/data/keyboard_maps.tmpl
index 30658790dc..498f636fb7 100644
--- a/dev/tools/gen_keycodes/data/keyboard_maps.tmpl
+++ b/dev/tools/gen_keycodes/data/keyboard_maps.tmpl
@@ -71,6 +71,18 @@ const Map<int, LogicalKeyboardKey> kGlfwNumpadMap = <int, LogicalKeyboardKey>{
 @@@GLFW_NUMPAD_MAP@@@
 };
 
+/// Maps GTK-specific key codes to the matching [LogicalKeyboardKey].
+const Map<int, LogicalKeyboardKey> kGtkToLogicalKey = <int, LogicalKeyboardKey>{
+@@@GTK_KEY_CODE_MAP@@@
+};
+
+/// A map of GTK key codes which have printable representations, but appear
+/// on the number pad. Used to provide different key objects for keys like
+/// KEY_EQUALS and NUMPAD_EQUALS.
+const Map<int, LogicalKeyboardKey> kGtkNumpadMap = <int, LogicalKeyboardKey>{
+@@@GTK_NUMPAD_MAP@@@
+};
+
 /// Maps XKB specific key code values representing [PhysicalKeyboardKey].
 const Map<int, PhysicalKeyboardKey> kLinuxToPhysicalKey = <int, PhysicalKeyboardKey>{
 @@@XKB_SCAN_CODE_MAP@@@
diff --git a/dev/tools/gen_keycodes/lib/dart_code_gen.dart b/dev/tools/gen_keycodes/lib/dart_code_gen.dart
index 983fc56dfe..c27ddc79d5 100644
--- a/dev/tools/gen_keycodes/lib/dart_code_gen.dart
+++ b/dev/tools/gen_keycodes/lib/dart_code_gen.dart
@@ -175,6 +175,32 @@ $otherComments  static const LogicalKeyboardKey $constantName = LogicalKeyboardK
     return glfwKeyCodeMap.toString().trimRight();
   }
 
+  /// This generates the map of GTK number pad key codes to logical keys.
+  String get gtkNumpadMap {
+    final StringBuffer gtkNumpadMap = StringBuffer();
+    for (final Key entry in numpadKeyData) {
+      if (entry.gtkKeyCodes != null) {
+        for (final int code in entry.gtkKeyCodes.cast<int>()) {
+          gtkNumpadMap.writeln('  $code: LogicalKeyboardKey.${entry.constantName},');
+        }
+      }
+    }
+    return gtkNumpadMap.toString().trimRight();
+  }
+
+  /// This generates the map of GTK key codes to logical keys.
+  String get gtkKeyCodeMap {
+    final StringBuffer gtkKeyCodeMap = StringBuffer();
+    for (final Key entry in keyData.data) {
+      if (entry.gtkKeyCodes != null) {
+        for (final int code in entry.gtkKeyCodes.cast<int>()) {
+          gtkKeyCodeMap.writeln('  $code: LogicalKeyboardKey.${entry.constantName},');
+        }
+      }
+    }
+    return gtkKeyCodeMap.toString().trimRight();
+  }
+
   /// This generates the map of XKB USB HID codes to physical keys.
   String get xkbScanCodeMap {
     final StringBuffer xkbScanCodeMap = StringBuffer();
@@ -414,6 +440,8 @@ $otherComments  static const LogicalKeyboardKey $constantName = LogicalKeyboardK
       'MACOS_FUNCTION_KEY_MAP': macOsFunctionKeyMap,
       'GLFW_KEY_CODE_MAP': glfwKeyCodeMap,
       'GLFW_NUMPAD_MAP': glfwNumpadMap,
+      'GTK_KEY_CODE_MAP': gtkKeyCodeMap,
+      'GTK_NUMPAD_MAP': gtkNumpadMap,
       'XKB_SCAN_CODE_MAP': xkbScanCodeMap,
       'WEB_LOGICAL_KEY_MAP': webLogicalKeyMap,
       'WEB_PHYSICAL_KEY_MAP': webPhysicalKeyMap,
diff --git a/dev/tools/gen_keycodes/lib/key_data.dart b/dev/tools/gen_keycodes/lib/key_data.dart
index b41c2c1a8b..76348c3181 100644
--- a/dev/tools/gen_keycodes/lib/key_data.dart
+++ b/dev/tools/gen_keycodes/lib/key_data.dart
@@ -28,6 +28,8 @@ class KeyData {
     String androidNameMap,
     String glfwKeyCodeHeader,
     String glfwNameMap,
+    String gtkKeyCodeHeader,
+    String gtkNameMap,
     String windowsKeyCodeHeader,
     String windowsNameMap,
   )   : assert(chromiumHidCodes != null),
@@ -36,11 +38,14 @@ class KeyData {
         assert(androidNameMap != null),
         assert(glfwKeyCodeHeader != null),
         assert(glfwNameMap != null),
+        assert(gtkKeyCodeHeader != null),
+        assert(gtkNameMap != null),
         assert(windowsKeyCodeHeader != null),
         assert(windowsNameMap != null) {
     _nameToAndroidScanCodes = _readAndroidScanCodes(androidKeyboardLayout);
     _nameToAndroidKeyCode = _readAndroidKeyCodes(androidKeyCodeHeader);
     _nameToGlfwKeyCode = _readGlfwKeyCodes(glfwKeyCodeHeader);
+    _nameToGtkKeyCode = _readGtkKeyCodes(gtkKeyCodeHeader);
     _nameToWindowsKeyCode = _readWindowsKeyCodes(windowsKeyCodeHeader);
     // Cast Android dom map
     final Map<String, List<dynamic>> dynamicAndroidNames = (json.decode(androidNameMap) as Map<String, dynamic>).cast<String, List<dynamic>>();
@@ -52,6 +57,11 @@ class KeyData {
     _nameToGlfwName = dynamicGlfwNames.map<String, List<String>>((String key, List<dynamic> value) {
       return MapEntry<String, List<String>>(key, value.cast<String>());
     });
+    // Cast GTK dom map
+    final Map<String, List<dynamic>> dynamicGtkNames = (json.decode(gtkNameMap) as Map<String, dynamic>).cast<String, List<dynamic>>();
+    _nameToGtkName = dynamicGtkNames.map<String, List<String>>((String key, List<dynamic> value) {
+      return MapEntry<String, List<String>>(key, value.cast<String>());
+    });
     // Cast Windows dom map
     final Map<String, List<dynamic>> dynamicWindowsNames = (json.decode(windowsNameMap) as Map<String, dynamic>).cast<String, List<dynamic>>();
     _nameToWindowsName = dynamicWindowsNames.map<String, List<String>>((String key, List<dynamic> value) {
@@ -97,6 +107,17 @@ class KeyData {
         }
       }
 
+      // GTK key names
+      entry.gtkKeyNames = _nameToGtkName[entry.constantName]?.cast<String>();
+      if (entry.gtkKeyNames != null && entry.gtkKeyNames.isNotEmpty) {
+        for (final String gtkKeyName in entry.gtkKeyNames) {
+          if (_nameToGtkKeyCode[gtkKeyName] != null) {
+            entry.gtkKeyCodes ??= <int>[];
+            entry.gtkKeyCodes.add(_nameToGtkKeyCode[gtkKeyName]);
+          }
+        }
+      }
+
       // Windows key names
       entry.windowsKeyNames = _nameToWindowsName[entry.constantName]?.cast<String>();
       if (entry.windowsKeyNames != null && entry.windowsKeyNames.isNotEmpty) {
@@ -133,6 +154,13 @@ class KeyData {
   /// JSON.
   Map<String, List<String>> _nameToGlfwName;
 
+  /// The mapping from the Flutter name (e.g. "eject") to the GTK name (e.g.
+  /// "GDK_KEY_Eject").
+  ///
+  /// Only populated if data is parsed from the source files, not if parsed from
+  /// JSON.
+  Map<String, List<String>> _nameToGtkName;
+
   /// The mapping from the Android name (e.g. "MEDIA_EJECT") to the integer scan
   /// code (physical location) of the key.
   ///
@@ -154,6 +182,13 @@ class KeyData {
   /// JSON.
   Map<String, int> _nameToGlfwKeyCode;
 
+  /// The mapping from GTK name (e.g. "GTK_KEY_comma") to the integer key code
+  /// (logical meaning) of the key.
+  ///
+  /// Only populated if data is parsed from the source files, not if parsed from
+  /// JSON.
+  Map<String, int> _nameToGtkKeyCode;
+
   /// The mapping from Widows name (e.g. "RETURN") to the integer key code
   /// (logical meaning) of the key.
   ///
@@ -244,6 +279,20 @@ class KeyData {
     return result;
   }
 
+  /// Parses entries from GTK's gdkkeysyms.h key code data file.
+  ///
+  /// Lines in this file look like this (without the ///):
+  ///  /** Space key. */
+  ///  #define GDK_KEY_space 0x020
+  Map<String, int> _readGtkKeyCodes(String headerFile) {
+    final RegExp definedCodes = RegExp(r'#define GDK_KEY_([a-zA-Z0-9_]+)\s*0x([0-9a-f]+),?');
+    final Map<String, int> replaced = <String, int>{};
+    for (final Match match in definedCodes.allMatches(headerFile)) {
+      replaced[match.group(1)] = int.parse(match.group(2), radix: 16);
+    }
+    return replaced;
+  }
+
   Map<String, int> _readWindowsKeyCodes(String headerFile) {
     final RegExp definedCodes = RegExp(r'define VK_([A-Z0-9_]+)\s*([A-Z0-9_x]+),?');
     final Map<String, int> replaced = <String, int>{};
@@ -332,6 +381,8 @@ class Key {
     this.androidKeyCodes,
     this.glfwKeyNames,
     this.glfwKeyCodes,
+    this.gtkKeyNames,
+    this.gtkKeyCodes,
   })  : assert(usbHidCode != null),
         assert(chromiumName != null),
         _constantName = enumName;
@@ -354,6 +405,8 @@ class Key {
       macOsScanCode: map['scanCodes']['macos'] as int,
       glfwKeyNames: (map['names']['glfw'] as List<dynamic>)?.cast<String>(),
       glfwKeyCodes: (map['keyCodes']['glfw'] as List<dynamic>)?.cast<int>(),
+      gtkKeyNames: (map['names']['gtk'] as List<dynamic>)?.cast<String>(),
+      gtkKeyCodes: (map['keyCodes']['gtk'] as List<dynamic>)?.cast<int>(),
     );
   }
 
@@ -402,6 +455,15 @@ class Key {
   /// value.
   List<int> glfwKeyCodes;
 
+  /// The list of names that GTK gives to this key (symbol names minus the
+  /// prefix).
+  List<String> gtkKeyNames;
+
+  /// The list of GTK key codes matching this key, created by looking up the
+  /// Linux name in the GTK data, and substituting the GTK key code
+  /// value.
+  List<int> gtkKeyCodes;
+
   /// Creates a JSON map from the key data.
   Map<String, dynamic> toJson() {
     return <String, dynamic>{
@@ -411,6 +473,7 @@ class Key {
         'english': commentName,
         'chromium': chromiumName,
         'glfw': glfwKeyNames,
+        'gtk': gtkKeyNames,
         'windows': windowsKeyNames,
       },
       'scanCodes': <String, dynamic>{
@@ -424,6 +487,7 @@ class Key {
       'keyCodes': <String, List<int>>{
         'android': androidKeyCodes,
         'glfw': glfwKeyCodes,
+        'gtk': gtkKeyCodes,
         'windows': windowsKeyCodes,
       },
     };
diff --git a/packages/flutter/lib/src/services/keyboard_maps.dart b/packages/flutter/lib/src/services/keyboard_maps.dart
index aceb97a55b..8eaaf17a63 100644
--- a/packages/flutter/lib/src/services/keyboard_maps.dart
+++ b/packages/flutter/lib/src/services/keyboard_maps.dart
@@ -1312,6 +1312,223 @@ const Map<int, LogicalKeyboardKey> kGlfwNumpadMap = <int, LogicalKeyboardKey>{
   336: LogicalKeyboardKey.numpadEqual,
 };
 
+/// Maps GTK-specific key codes to the matching [LogicalKeyboardKey].
+const Map<int, LogicalKeyboardKey> kGtkToLogicalKey = <int, LogicalKeyboardKey>{
+  65517: LogicalKeyboardKey.hyper,
+  65518: LogicalKeyboardKey.hyper,
+  65515: LogicalKeyboardKey.superKey,
+  65516: LogicalKeyboardKey.superKey,
+  269025191: LogicalKeyboardKey.suspend,
+  269025071: LogicalKeyboardKey.sleep,
+  269025067: LogicalKeyboardKey.wakeUp,
+  65: LogicalKeyboardKey.keyA,
+  66: LogicalKeyboardKey.keyB,
+  67: LogicalKeyboardKey.keyC,
+  68: LogicalKeyboardKey.keyD,
+  69: LogicalKeyboardKey.keyE,
+  70: LogicalKeyboardKey.keyF,
+  71: LogicalKeyboardKey.keyG,
+  72: LogicalKeyboardKey.keyH,
+  73: LogicalKeyboardKey.keyI,
+  74: LogicalKeyboardKey.keyJ,
+  75: LogicalKeyboardKey.keyK,
+  76: LogicalKeyboardKey.keyL,
+  77: LogicalKeyboardKey.keyM,
+  78: LogicalKeyboardKey.keyN,
+  79: LogicalKeyboardKey.keyO,
+  80: LogicalKeyboardKey.keyP,
+  81: LogicalKeyboardKey.keyQ,
+  82: LogicalKeyboardKey.keyR,
+  83: LogicalKeyboardKey.keyS,
+  84: LogicalKeyboardKey.keyT,
+  85: LogicalKeyboardKey.keyU,
+  86: LogicalKeyboardKey.keyV,
+  87: LogicalKeyboardKey.keyW,
+  88: LogicalKeyboardKey.keyX,
+  89: LogicalKeyboardKey.keyY,
+  90: LogicalKeyboardKey.keyZ,
+  49: LogicalKeyboardKey.digit1,
+  50: LogicalKeyboardKey.digit2,
+  51: LogicalKeyboardKey.digit3,
+  52: LogicalKeyboardKey.digit4,
+  53: LogicalKeyboardKey.digit5,
+  54: LogicalKeyboardKey.digit6,
+  55: LogicalKeyboardKey.digit7,
+  56: LogicalKeyboardKey.digit8,
+  57: LogicalKeyboardKey.digit9,
+  48: LogicalKeyboardKey.digit0,
+  65293: LogicalKeyboardKey.enter,
+  65307: LogicalKeyboardKey.escape,
+  65288: LogicalKeyboardKey.backspace,
+  65289: LogicalKeyboardKey.tab,
+  65417: LogicalKeyboardKey.tab,
+  32: LogicalKeyboardKey.space,
+  65408: LogicalKeyboardKey.space,
+  45: LogicalKeyboardKey.minus,
+  61: LogicalKeyboardKey.equal,
+  91: LogicalKeyboardKey.bracketLeft,
+  93: LogicalKeyboardKey.bracketRight,
+  92: LogicalKeyboardKey.backslash,
+  59: LogicalKeyboardKey.semicolon,
+  39: LogicalKeyboardKey.quote,
+  96: LogicalKeyboardKey.backquote,
+  44: LogicalKeyboardKey.comma,
+  46: LogicalKeyboardKey.period,
+  47: LogicalKeyboardKey.slash,
+  65509: LogicalKeyboardKey.capsLock,
+  65470: LogicalKeyboardKey.f1,
+  65425: LogicalKeyboardKey.f1,
+  65471: LogicalKeyboardKey.f2,
+  65426: LogicalKeyboardKey.f2,
+  65472: LogicalKeyboardKey.f3,
+  65427: LogicalKeyboardKey.f3,
+  65473: LogicalKeyboardKey.f4,
+  65428: LogicalKeyboardKey.f4,
+  65474: LogicalKeyboardKey.f5,
+  65475: LogicalKeyboardKey.f6,
+  65476: LogicalKeyboardKey.f7,
+  65477: LogicalKeyboardKey.f8,
+  65478: LogicalKeyboardKey.f9,
+  65479: LogicalKeyboardKey.f10,
+  65480: LogicalKeyboardKey.f11,
+  65481: LogicalKeyboardKey.f12,
+  64797: LogicalKeyboardKey.printScreen,
+  65300: LogicalKeyboardKey.scrollLock,
+  65299: LogicalKeyboardKey.pause,
+  65379: LogicalKeyboardKey.insert,
+  65438: LogicalKeyboardKey.insert,
+  65360: LogicalKeyboardKey.home,
+  65429: LogicalKeyboardKey.home,
+  65365: LogicalKeyboardKey.pageUp,
+  65434: LogicalKeyboardKey.pageUp,
+  65535: LogicalKeyboardKey.delete,
+  65439: LogicalKeyboardKey.delete,
+  65367: LogicalKeyboardKey.end,
+  65436: LogicalKeyboardKey.end,
+  65366: LogicalKeyboardKey.pageDown,
+  65435: LogicalKeyboardKey.pageDown,
+  65363: LogicalKeyboardKey.arrowRight,
+  65432: LogicalKeyboardKey.arrowRight,
+  65361: LogicalKeyboardKey.arrowLeft,
+  65430: LogicalKeyboardKey.arrowLeft,
+  65364: LogicalKeyboardKey.arrowDown,
+  65433: LogicalKeyboardKey.arrowDown,
+  65362: LogicalKeyboardKey.arrowUp,
+  65431: LogicalKeyboardKey.arrowUp,
+  65407: LogicalKeyboardKey.numLock,
+  65455: LogicalKeyboardKey.numpadDivide,
+  65450: LogicalKeyboardKey.numpadMultiply,
+  65453: LogicalKeyboardKey.numpadSubtract,
+  65451: LogicalKeyboardKey.numpadAdd,
+  65421: LogicalKeyboardKey.numpadEnter,
+  65457: LogicalKeyboardKey.numpad1,
+  65458: LogicalKeyboardKey.numpad2,
+  65459: LogicalKeyboardKey.numpad3,
+  65460: LogicalKeyboardKey.numpad4,
+  65461: LogicalKeyboardKey.numpad5,
+  65462: LogicalKeyboardKey.numpad6,
+  65463: LogicalKeyboardKey.numpad7,
+  65464: LogicalKeyboardKey.numpad8,
+  65465: LogicalKeyboardKey.numpad9,
+  65456: LogicalKeyboardKey.numpad0,
+  65454: LogicalKeyboardKey.numpadDecimal,
+  65383: LogicalKeyboardKey.contextMenu,
+  269025066: LogicalKeyboardKey.power,
+  65469: LogicalKeyboardKey.numpadEqual,
+  65482: LogicalKeyboardKey.f13,
+  65483: LogicalKeyboardKey.f14,
+  65484: LogicalKeyboardKey.f15,
+  65485: LogicalKeyboardKey.f16,
+  65486: LogicalKeyboardKey.f17,
+  65487: LogicalKeyboardKey.f18,
+  65488: LogicalKeyboardKey.f19,
+  65489: LogicalKeyboardKey.f20,
+  65490: LogicalKeyboardKey.f21,
+  65491: LogicalKeyboardKey.f22,
+  65492: LogicalKeyboardKey.f23,
+  65493: LogicalKeyboardKey.f24,
+  269025131: LogicalKeyboardKey.open,
+  65386: LogicalKeyboardKey.help,
+  65376: LogicalKeyboardKey.select,
+  65381: LogicalKeyboardKey.undo,
+  269025111: LogicalKeyboardKey.copy,
+  64789: LogicalKeyboardKey.copy,
+  269025133: LogicalKeyboardKey.paste,
+  65384: LogicalKeyboardKey.find,
+  269025042: LogicalKeyboardKey.audioVolumeMute,
+  269025043: LogicalKeyboardKey.audioVolumeUp,
+  269025041: LogicalKeyboardKey.audioVolumeDown,
+  65406: LogicalKeyboardKey.kanaMode,
+  165: LogicalKeyboardKey.intlYen,
+  65507: LogicalKeyboardKey.controlLeft,
+  65505: LogicalKeyboardKey.shiftLeft,
+  65513: LogicalKeyboardKey.altLeft,
+  65511: LogicalKeyboardKey.metaLeft,
+  65508: LogicalKeyboardKey.controlRight,
+  65506: LogicalKeyboardKey.shiftRight,
+  65514: LogicalKeyboardKey.altRight,
+  65512: LogicalKeyboardKey.metaRight,
+  269025026: LogicalKeyboardKey.brightnessUp,
+  269025027: LogicalKeyboardKey.brightnessDown,
+  269025134: LogicalKeyboardKey.launchPhone,
+  269025044: LogicalKeyboardKey.mediaPlay,
+  64790: LogicalKeyboardKey.mediaPlay,
+  269025073: LogicalKeyboardKey.mediaPause,
+  269025052: LogicalKeyboardKey.mediaRecord,
+  269025175: LogicalKeyboardKey.mediaFastForward,
+  269025086: LogicalKeyboardKey.mediaRewind,
+  269025047: LogicalKeyboardKey.mediaTrackNext,
+  269025046: LogicalKeyboardKey.mediaTrackPrevious,
+  269025045: LogicalKeyboardKey.mediaStop,
+  269025068: LogicalKeyboardKey.eject,
+  269025049: LogicalKeyboardKey.launchMail,
+  269025056: LogicalKeyboardKey.launchCalendar,
+  269025070: LogicalKeyboardKey.launchInternetBrowser,
+  269025121: LogicalKeyboardKey.logOff,
+  269025148: LogicalKeyboardKey.spellCheck,
+  269025069: LogicalKeyboardKey.launchScreenSaver,
+  269025170: LogicalKeyboardKey.launchAudioBrowser,
+  269025128: LogicalKeyboardKey.newKey,
+  269025110: LogicalKeyboardKey.close,
+  269025143: LogicalKeyboardKey.save,
+  65377: LogicalKeyboardKey.print,
+  269025051: LogicalKeyboardKey.browserSearch,
+  269025048: LogicalKeyboardKey.browserHome,
+  269025062: LogicalKeyboardKey.browserBack,
+  269025063: LogicalKeyboardKey.browserForward,
+  269025064: LogicalKeyboardKey.browserStop,
+  269025065: LogicalKeyboardKey.browserRefresh,
+  269025072: LogicalKeyboardKey.browserFavorites,
+  269025163: LogicalKeyboardKey.zoomIn,
+  269025164: LogicalKeyboardKey.zoomOut,
+  65382: LogicalKeyboardKey.redo,
+  269025138: LogicalKeyboardKey.mailReply,
+  269025168: LogicalKeyboardKey.mailForward,
+  269025147: LogicalKeyboardKey.mailSend,
+};
+
+/// A map of GTK key codes which have printable representations, but appear
+/// on the number pad. Used to provide different key objects for keys like
+/// KEY_EQUALS and NUMPAD_EQUALS.
+const Map<int, LogicalKeyboardKey> kGtkNumpadMap = <int, LogicalKeyboardKey>{
+  65455: LogicalKeyboardKey.numpadDivide,
+  65450: LogicalKeyboardKey.numpadMultiply,
+  65453: LogicalKeyboardKey.numpadSubtract,
+  65451: LogicalKeyboardKey.numpadAdd,
+  65457: LogicalKeyboardKey.numpad1,
+  65458: LogicalKeyboardKey.numpad2,
+  65459: LogicalKeyboardKey.numpad3,
+  65460: LogicalKeyboardKey.numpad4,
+  65461: LogicalKeyboardKey.numpad5,
+  65462: LogicalKeyboardKey.numpad6,
+  65463: LogicalKeyboardKey.numpad7,
+  65464: LogicalKeyboardKey.numpad8,
+  65465: LogicalKeyboardKey.numpad9,
+  65456: LogicalKeyboardKey.numpad0,
+  65454: LogicalKeyboardKey.numpadDecimal,
+  65469: LogicalKeyboardKey.numpadEqual,
+};
+
 /// Maps XKB specific key code values representing [PhysicalKeyboardKey].
 const Map<int, PhysicalKeyboardKey> kLinuxToPhysicalKey = <int, PhysicalKeyboardKey>{
   0x00000281: PhysicalKeyboardKey.privacyScreenToggle,
diff --git a/packages/flutter/lib/src/services/raw_keyboard_linux.dart b/packages/flutter/lib/src/services/raw_keyboard_linux.dart
index 25e9193f17..7b58b76a6a 100644
--- a/packages/flutter/lib/src/services/raw_keyboard_linux.dart
+++ b/packages/flutter/lib/src/services/raw_keyboard_linux.dart
@@ -19,7 +19,7 @@ import 'raw_keyboard.dart';
 ///
 ///  * [RawKeyboard], which uses this interface to expose key data.
 class RawKeyEventDataLinux extends RawKeyEventData {
-  /// Creates a key event data structure specific for macOS.
+  /// Creates a key event data structure specific for Linux.
   ///
   /// The [toolkit], [scanCode], [unicodeScalarValues], [keyCode], and [modifiers],
   /// arguments must not be null.
@@ -145,6 +145,8 @@ abstract class KeyHelper {
   factory KeyHelper(String toolkit) {
     if (toolkit == 'glfw') {
       return GLFWKeyHelper();
+    } else if (toolkit == 'gtk') {
+      return GtkKeyHelper();
     } else {
       throw FlutterError('Window toolkit not recognized: $toolkit');
     }
@@ -314,3 +316,149 @@ class GLFWKeyHelper with KeyHelper {
     return kGlfwToLogicalKey[keyCode];
   }
 }
+
+/// Helper class that uses GTK-specific key mappings.
+class GtkKeyHelper with KeyHelper {
+  /// This mask is used to check the [modifiers] field to test whether one of the
+  /// SHIFT modifier keys is pressed.
+  ///
+  /// {@template flutter.services.gtkKeyHelper.modifiers}
+  /// Use this value if you need to decode the [modifiers] field yourself, but
+  /// it's much easier to use [isModifierPressed] if you just want to know if a
+  /// modifier is pressed. This is especially true on GTK, since its modifiers
+  /// don't include the effects of the current key event.
+  /// {@endtemplate}
+  static const int modifierShift = 1 << 0;
+
+  /// This mask is used to check the [modifiers] field to test whether the CAPS
+  /// LOCK modifier key is on.
+  /// {@macro flutter.services.gtkKeyHelper.modifiers}
+  static const int modifierCapsLock = 1 << 1;
+
+  /// This mask is used to check the [modifiers] field to test whether one of the
+  /// CTRL modifier keys is pressed.
+  /// {@macro flutter.services.gtkKeyHelper.modifiers}
+  static const int modifierControl = 1 << 2;
+
+  /// This mask is used to check the [modifiers] field to test whether the first
+  /// modifier key is pressed (usually mapped to alt).
+  /// {@macro flutter.services.gtkKeyHelper.modifiers}
+  static const int modifierMod1 = 1 << 3;
+
+  /// This mask is used to check the [modifiers] field to test whether the second
+  /// modifier key is pressed (assumed to be mapped to num lock).
+  /// {@macro flutter.services.gtkKeyHelper.modifiers}
+  static const int modifierMod2 = 1 << 4;
+
+  /// This mask is used to check the [modifiers] field to test whether one of the
+  /// Meta(SUPER) modifier keys is pressed.
+  /// {@macro flutter.services.gtkKeyHelper.modifiers}
+  static const int modifierMeta = 1 << 28;
+
+  int _mergeModifiers({int modifiers, int keyCode, bool isDown}) {
+    // GTK Key codes for modifier keys.
+    const int shiftLeftKeyCode = 0xffe1;
+    const int shiftRightKeyCode = 0xffe2;
+    const int controlLeftKeyCode = 0xffe3;
+    const int controlRightKeyCode = 0xffe4;
+    const int capsLockKeyCode = 0xffe5;
+    const int shiftLockKeyCode = 0xffe6;
+    const int metaLeftKeyCode = 0xffe7;
+    const int metaRightKeyCode = 0xffe8;
+    const int altLeftKeyCode = 0xffe9;
+    const int altRightKeyCode = 0xffea;
+    const int numLockKeyCode = 0xff7f;
+
+    // On GTK, the "modifiers" bitfield is the state as it is BEFORE this event
+    // happened, not AFTER, like every other platform. Consequently, if this is
+    // a key down, then we need to add the correct modifier bits, and if it's a
+    // key up, we need to remove them.
+
+    int modifierChange = 0;
+    switch (keyCode) {
+      case shiftLeftKeyCode:
+      case shiftRightKeyCode:
+        modifierChange = modifierShift;
+        break;
+      case controlLeftKeyCode:
+      case controlRightKeyCode:
+        modifierChange = modifierControl;
+        break;
+      case altLeftKeyCode:
+      case altRightKeyCode:
+        modifierChange = modifierMod1;
+        break;
+      case metaLeftKeyCode:
+      case metaRightKeyCode:
+        modifierChange = modifierMeta;
+        break;
+      case capsLockKeyCode:
+      case shiftLockKeyCode:
+        modifierChange = modifierCapsLock;
+        break;
+      case numLockKeyCode:
+        modifierChange = modifierMod2;
+        break;
+      default:
+        break;
+    }
+
+    return isDown ? modifiers | modifierChange : modifiers & ~modifierChange;
+  }
+
+  @override
+  bool isModifierPressed(ModifierKey key, int modifiers, {KeyboardSide side = KeyboardSide.any, int keyCode, bool isDown}) {
+    modifiers = _mergeModifiers(modifiers: modifiers, keyCode: keyCode, isDown: isDown);
+    switch (key) {
+      case ModifierKey.controlModifier:
+        return modifiers & modifierControl != 0;
+      case ModifierKey.shiftModifier:
+        return modifiers & modifierShift != 0;
+      case ModifierKey.altModifier:
+        return modifiers & modifierMod1 != 0;
+      case ModifierKey.metaModifier:
+        return modifiers & modifierMeta != 0;
+      case ModifierKey.capsLockModifier:
+        return modifiers & modifierCapsLock != 0;
+      case ModifierKey.numLockModifier:
+        return modifiers & modifierMod2 != 0;
+      case ModifierKey.functionModifier:
+      case ModifierKey.symbolModifier:
+      case ModifierKey.scrollLockModifier:
+        // These are not used in GTK keyboards.
+        return false;
+    }
+    return false;
+  }
+
+  @override
+  KeyboardSide getModifierSide(ModifierKey key) {
+    switch (key) {
+      case ModifierKey.controlModifier:
+      case ModifierKey.shiftModifier:
+      case ModifierKey.altModifier:
+      case ModifierKey.metaModifier:
+        // Neither GTK or X11 provide a distinction between left and right modifiers, so defaults to KeyboardSide.any.
+        // https://code.woboq.org/qt5/include/X11/X.h.html#_M/ShiftMask
+        return KeyboardSide.any;
+      case ModifierKey.capsLockModifier:
+      case ModifierKey.numLockModifier:
+      case ModifierKey.functionModifier:
+      case ModifierKey.symbolModifier:
+      case ModifierKey.scrollLockModifier:
+        return KeyboardSide.all;
+    }
+    assert(false, 'Not handling $key type properly.');
+    return null;
+  }
+
+  @override
+  LogicalKeyboardKey numpadKey(int keyCode) {
+    return kGtkNumpadMap[keyCode];
+  }
+
+  @override
+  LogicalKeyboardKey logicalKey(int keyCode) {
+    return kGtkToLogicalKey[keyCode];
+  }
+}
diff --git a/packages/flutter/test/services/raw_keyboard_test.dart b/packages/flutter/test/services/raw_keyboard_test.dart
index 8e0595e5c4..e7e5c09558 100644
--- a/packages/flutter/test/services/raw_keyboard_test.dart
+++ b/packages/flutter/test/services/raw_keyboard_test.dart
@@ -1101,6 +1101,189 @@ void main() {
     });
   }, skip: isBrowser);
 
+  group('RawKeyEventDataLinux-GTK', () {
+    const Map<int, _ModifierCheck> modifierTests = <int, _ModifierCheck>{
+      GtkKeyHelper.modifierMod1: _ModifierCheck(ModifierKey.altModifier, KeyboardSide.any),
+      GtkKeyHelper.modifierShift: _ModifierCheck(ModifierKey.shiftModifier, KeyboardSide.any),
+      GtkKeyHelper.modifierControl: _ModifierCheck(ModifierKey.controlModifier, KeyboardSide.any),
+      GtkKeyHelper.modifierMeta: _ModifierCheck(ModifierKey.metaModifier, KeyboardSide.any),
+      GtkKeyHelper.modifierMod2: _ModifierCheck(ModifierKey.numLockModifier, KeyboardSide.all),
+      GtkKeyHelper.modifierCapsLock: _ModifierCheck(ModifierKey.capsLockModifier, KeyboardSide.all),
+    };
+
+    // How modifiers are interpreted depends upon the keyCode for GTK.
+    int keyCodeForModifier(int modifier, {bool isLeft}) {
+      switch (modifier) {
+        case GtkKeyHelper.modifierMod1:
+          return isLeft ? 65513 : 65513;
+        case GtkKeyHelper.modifierShift:
+          return isLeft ? 65505 : 65506;
+        case GtkKeyHelper.modifierControl:
+          return isLeft ? 65507 : 65508;
+        case GtkKeyHelper.modifierMeta:
+          return isLeft ? 65511 : 65512;
+        case GtkKeyHelper.modifierMod2:
+          return 65407;
+        case GtkKeyHelper.modifierCapsLock:
+          return 65509;
+        default:
+          return 65; // keyA
+      }
+    }
+
+    test('modifier keys are recognized individually', () {
+      for (final int modifier in modifierTests.keys) {
+        for (final bool isDown in <bool>[true, false]) {
+          for (final bool isLeft in <bool>[true, false]) {
+            final RawKeyEvent event = RawKeyEvent.fromMessage(<String, dynamic>{
+              'type': isDown ? 'keydown' : 'keyup',
+              'keymap': 'linux',
+              'toolkit': 'gtk',
+              'keyCode': keyCodeForModifier(modifier, isLeft: isLeft),
+              'scanCode': 0x00000026,
+              'unicodeScalarValues': 97,
+              // GTK modifiers don't include the current key event.
+              'modifiers': isDown ? 0 : modifier,
+            });
+            final RawKeyEventDataLinux data = event.data as RawKeyEventDataLinux;
+            for (final ModifierKey key in ModifierKey.values) {
+              if (modifierTests[modifier].key == key) {
+                expect(
+                  data.isModifierPressed(key, side: modifierTests[modifier].side),
+                  isDown ? isTrue : isFalse,
+                  reason: "${isLeft ? 'left' : 'right'} $key ${isDown ? 'should' : 'should not'} be pressed with metaState $modifier, when key is ${isDown ? 'down' : 'up'}, but isn't.",
+                );
+                expect(data.getModifierSide(key), equals(modifierTests[modifier].side));
+              } else {
+                expect(
+                  data.isModifierPressed(key, side: modifierTests[modifier].side),
+                  isFalse,
+                  reason: "${isLeft ? 'left' : 'right'} $key should not be pressed with metaState $modifier, wwhen key is ${isDown ? 'down' : 'up'}, but is.",
+                );
+              }
+            }
+          }
+        }
+      }
+    });
+    test('modifier keys are recognized when combined', () {
+      for (final int modifier in modifierTests.keys) {
+        if (modifier == GtkKeyHelper.modifierControl) {
+          // No need to combine CTRL key with itself.
+          continue;
+        }
+        final RawKeyEvent event = RawKeyEvent.fromMessage(<String, dynamic>{
+          'type': 'keydown',
+          'keymap': 'linux',
+          'toolkit': 'gtk',
+          'keyCode': 65,
+          'scanCode': 0x00000026,
+          'unicodeScalarValues': 97,
+          'modifiers': modifier | GtkKeyHelper.modifierControl,
+        });
+        final RawKeyEventDataLinux data = event.data as RawKeyEventDataLinux;
+        for (final ModifierKey key in ModifierKey.values) {
+          if (modifierTests[modifier].key == key || key == ModifierKey.controlModifier) {
+            expect(
+              data.isModifierPressed(key, side: modifierTests[modifier].side),
+              isTrue,
+              reason: '$key should be pressed with metaState $modifier '
+                  "and additional key ${GtkKeyHelper.modifierControl}, but isn't.",
+            );
+            if (key != ModifierKey.controlModifier) {
+              expect(data.getModifierSide(key), equals(modifierTests[modifier].side));
+            } else {
+              expect(data.getModifierSide(key), equals(KeyboardSide.any));
+            }
+          } else {
+            expect(
+              data.isModifierPressed(key, side: modifierTests[modifier].side),
+              isFalse,
+              reason: '$key should not be pressed with metaState $modifier '
+                  'and additional key ${GtkKeyHelper.modifierControl}.',
+            );
+          }
+        }
+      }
+    });
+    test('Printable keyboard keys are correctly translated', () {
+      final RawKeyEvent keyAEvent = RawKeyEvent.fromMessage(const <String, dynamic>{
+        'type': 'keydown',
+        'keymap': 'linux',
+        'toolkit': 'gtk',
+        'keyCode': 65,
+        'scanCode': 0x00000026,
+        'unicodeScalarValues': 113,
+        'modifiers': 0x0,
+      });
+      final RawKeyEventDataLinux data = keyAEvent.data as RawKeyEventDataLinux;
+      expect(data.physicalKey, equals(PhysicalKeyboardKey.keyA));
+      expect(data.logicalKey, equals(LogicalKeyboardKey.keyQ));
+      expect(data.keyLabel, equals('q'));
+    });
+    test('Code points with two Unicode scalar values are allowed', () {
+      final RawKeyEvent keyAEvent = RawKeyEvent.fromMessage(const <String, dynamic>{
+        'type': 'keydown',
+        'keymap': 'linux',
+        'toolkit': 'gtk',
+        'keyCode': 65,
+        'scanCode': 0x00000026,
+        'unicodeScalarValues': 0x10FFFF,
+        'modifiers': 0x0,
+      });
+      final RawKeyEventDataLinux data = keyAEvent.data as RawKeyEventDataLinux;
+      expect(data.physicalKey, equals(PhysicalKeyboardKey.keyA));
+      expect(data.logicalKey.keyId, equals(0x10FFFF));
+      expect(data.keyLabel, equals('􏿿'));
+    });
+
+    test('Code points with more than three Unicode scalar values are not allowed', () {
+      // |keyCode| and |scanCode| are arbitrary values. This test should fail due to an invalid |unicodeScalarValues|.
+      void _createFailingKey() {
+        RawKeyEvent.fromMessage(const <String, dynamic>{
+          'type': 'keydown',
+          'keymap': 'linux',
+          'toolkit': 'gtk',
+          'keyCode': 65,
+          'scanCode': 0x00000026,
+          'unicodeScalarValues': 0x1F00000000,
+          'modifiers': 0x0,
+        });
+      }
+
+      expect(() => _createFailingKey(), throwsAssertionError);
+    });
+    test('Control keyboard keys are correctly translated', () {
+      final RawKeyEvent escapeKeyEvent = RawKeyEvent.fromMessage(const <String, dynamic>{
+        'type': 'keydown',
+        'keymap': 'linux',
+        'toolkit': 'gtk',
+        'keyCode': 65307,
+        'scanCode': 0x00000009,
+        'unicodeScalarValues': 0,
+        'modifiers': 0x0,
+      });
+      final RawKeyEventDataLinux data = escapeKeyEvent.data as RawKeyEventDataLinux;
+      expect(data.physicalKey, equals(PhysicalKeyboardKey.escape));
+      expect(data.logicalKey, equals(LogicalKeyboardKey.escape));
+      expect(data.keyLabel, isNull);
+    });
+    test('Modifier keyboard keys are correctly translated', () {
+      final RawKeyEvent shiftLeftKeyEvent = RawKeyEvent.fromMessage(const <String, dynamic>{
+        'type': 'keydown',
+        'keymap': 'linux',
+        'toolkit': 'gtk',
+        'keyCode': 65505,
+        'scanCode': 0x00000032,
+        'unicodeScalarValues': 0,
+      });
+      final RawKeyEventDataLinux data = shiftLeftKeyEvent.data as RawKeyEventDataLinux;
+      expect(data.physicalKey, equals(PhysicalKeyboardKey.shiftLeft));
+      expect(data.logicalKey, equals(LogicalKeyboardKey.shiftLeft));
+      expect(data.keyLabel, isNull);
+    });
+  }, skip: isBrowser);
+
   group('RawKeyEventDataWeb', () {
     const Map<int, ModifierKey> modifierTests = <int, ModifierKey>{
       RawKeyEventDataWeb.modifierAlt: ModifierKey.altModifier,