Examine source code of Windows 11

{
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "windows11-theme@afnankhan",
      "strict_min_version": "89.0"
    }
  },
  "name": "Windows 11",
  "version": "2026.8.25",
  "description": "Windows 11 Theme",
  "theme": {
    "colors": {
      "frame": "#191919",
      "frame_inactive": "#191919",
      "tab_text": "#FFFFFF",
      "tab_line": "rgba(0, 0, 0, 0)",
      "tab_loading": "#65C0FD",
      "tab_selected": "#393939",
      "tab_background_text": "#CCCCCC",
      "tab_background_separator": "#323232",
      "toolbar": "#2C2C2C",
      "toolbar_top_separator": "#1D1D1D",
      "toolbar_bottom_separator": "#3A3A3A",
      "toolbar_vertical_separator": "#3A3A3A",
      "icons": "#FFFFFF",
      "bookmark_text": "#FFFFFF",
      "button_background_hover": "#383838",
      "button_background_active": "#343434",
      "toolbar_field": "#383838",
      "toolbar_field_focus": "#262626",
      "toolbar_field_border": "rgba(0, 0, 0, 0)",
      "toolbar_field_border_focus": "#454545",
      "toolbar_field_text": "#FFFFFF",
      "toolbar_field_highlight": "#383838",
      "toolbar_field_highlight_text": "#FFFFFF",
      "toolbar_field_separator": "#3A3A3A",
      "icons_attention": "#65C0FD",
      "popup": "#2C2C2C",
      "popup_text": "#FFFFFF",
      "popup_border": "#1D1D1D",
      "popup_highlight": "#383838",
      "popup_highlight_text": "#FFFFFF",
      "sidebar": "#2C2C2C",
      "sidebar_text": "#FFFFFF",
      "sidebar_border": "rgba(0, 0, 0, 0)",
      "sidebar_highlight": "#383838",
      "sidebar_highlight_text": "#FFFFFF",
      "ntp_text": "#FFFFFF",
      "ntp_background": "#2C2C2C"
    }
  }
}