Examine source code of torbo.no

{
  "name": "torbo.no",
  "manifest_version": 2,
  "version": "10.0",
  "theme": {
    "images": {
      "theme_frame": "theme_banner_firefox.gif"
    },
    "colors": {
      "frame": "rgba(190, 212, 224, 1)",
      "tab_background_text": "rgba(51, 62, 79, 1)",
      "toolbar": "rgba(229, 237, 242, 1)",
      "bookmark_text": "rgba(51, 62, 79, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(51, 62, 79, 1)"
    }
  }
}