Examine source code of Cajo

{
  "name": "Cajo",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Proba.jpg"
    },
    "colors": {
      "toolbar": "rgba(211, 213, 224, 1)",
      "toolbar_field": "rgba(241, 243, 244, 1)",
      "toolbar_field_text": "rgba(71, 3, 3, 1)",
      "frame": "rgba(245, 247, 255, 1)",
      "tab_background_text": "rgba(3, 9, 84, 1)",
      "bookmark_text": "rgba(5, 9, 64, 1)"
    }
  }
}