Examine source code of Windows 11 Dark Silk

{
  "name": "Windows 11 Dark Silk",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Win11_3440.jpg"
    },
    "colors": {
      "frame": "rgba(87, 97, 107, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(82, 133, 189, 0.35)",
      "bookmark_text": "rgba(148, 223, 255, 1)",
      "toolbar_field": "rgba(17, 29, 43, 0.5)",
      "toolbar_field_text": "rgba(148, 223, 255, 1)",
      "tab_line": "rgba(102, 140, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2ee3d4ee-9066-44cd-a3c1-5f7ceffc8df7}"
    }
  }
}