Examine source code of Aniteez extra dark mode

{
  "name": "Aniteez extra dark mode",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "mozilla firefox themes2.png"
    },
    "colors": {
      "frame": "rgba(44, 43, 54, 1)",
      "tab_background_text": "rgba(218, 206, 224, 1)",
      "toolbar": "rgba(237, 222, 206, 0.1)",
      "bookmark_text": "rgba(237, 223, 242, 1)",
      "toolbar_field": "rgba(230, 209, 209, 0.46)",
      "toolbar_field_text": "rgba(249, 245, 250, 1)",
      "tab_line": "rgba(208, 189, 217, 0.68)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2ccb8241-4279-4a2f-a017-ce93da545301}"
    }
  }
}