Examine source code of Desert Dusk

{
  "name": "Desert Dusk",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Desert Dusk.png"
    },
    "colors": {
      "frame": "rgba(179, 177, 138, 1)",
      "tab_background_text": "rgba(255, 250, 250, 1)",
      "toolbar": "rgba(3, 3, 3, 0)",
      "bookmark_text": "rgba(255, 250, 250, 1)",
      "toolbar_field": "rgba(3, 3, 3, 0)",
      "toolbar_field_text": "rgba(255, 250, 250, 1)",
      "tab_line": "rgba(255, 250, 250, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3a32c9a8-5cc8-4088-b603-43d9d941adfa}"
    }
  }
}