Examine source code of Burgunder Rausch

{
  "name": "Burgunder Rausch",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "br-oben-firefox-theme.jpg"
    },
    "colors": {
      "frame": "rgba(176, 111, 121, 1)",
      "tab_background_text": "rgba(219, 129, 129, 1)",
      "toolbar": "rgba(240, 158, 158, 1)",
      "bookmark_text": "rgba(156, 39, 39, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)"
    }
  }
}