Examine source code of six stars

{
  "name": "six stars",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "1a.jpg"
    },
    "colors": {
      "frame": "rgba(225, 225, 225, 0)",
      "tab_background_text": "rgba(214, 214, 214, 1)",
      "toolbar": "rgba(125, 139, 168, 0)",
      "bookmark_text": "rgba(199, 199, 199, 1)",
      "toolbar_field": "rgba(112, 58, 66, 1)",
      "toolbar_field_text": "rgba(250, 197, 90, 0.58)",
      "tab_line": "rgba(82, 82, 82, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6abbf7f1-da5d-4f87-8fba-db31b6a04bc3}"
    }
  }
}