Examine source code of Creative Colours

{
  "name": "Creative Colours",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "windows-11-se-3840x2160-microsoft-4k-23795.jpg"
    },
    "colors": {
      "frame": "rgba(8, 47, 138, 1)",
      "tab_background_text": "rgba(2, 32, 54, 1)",
      "toolbar": "rgba(255, 255, 255, 1)",
      "bookmark_text": "rgba(13, 6, 6, 1)",
      "toolbar_field": "rgba(245, 245, 245, 1)",
      "toolbar_field_text": "rgba(209, 16, 16, 1)",
      "tab_line": "rgba(230, 212, 212, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{33d5bbfc-14c4-4d3c-8bfc-7c2e8b5fff6a}"
    }
  }
}