Examine source code of Cotopaxi

{
  "name": "Cotopaxi",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Cotopaxi.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(240, 82, 229, 1)",
      "bookmark_text": "rgba(45, 187, 212, 1)",
      "toolbar_field_text": "rgba(49, 43, 217, 1)",
      "tab_line": "rgba(56, 217, 99, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3899775b-d405-42df-817e-4678162541a6}"
    }
  }
}