Examine source code of Battered

{
  "name": "Battered",
  "manifest_version": 2,
  "version": "6.0",
  "theme": {
    "images": {
      "theme_frame": "abstrakt145.png"
    },
    "colors": {
      "frame": "rgba(227, 227, 227, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(98, 186, 185, 0.33)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(118, 108, 92, 0.31)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(255, 157, 0, 0.56)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5b804483-05d3-4bb8-b88d-6539a0ac204c}"
    }
  }
}