Examine source code of Arwen

{
  "name": "Arwen",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "d7c735708f6208b903775a656625e77a8f00b4e6r1-894-894v2_uhq.jpg"
    },
    "colors": {
      "frame": "rgba(79, 109, 173, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "bookmark_text": "rgba(84, 55, 55, 1)",
      "toolbar_field": "rgba(179, 100, 100, 1)",
      "toolbar_field_text": "rgba(173, 147, 147, 1)"
    }
  }
}