Examine source code of Rakb

{
  "name": "Rakb",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "books-every-college-student-read-1024x640.jpeg"
    },
    "colors": {
      "frame": "rgba(92, 24, 24, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(43, 27, 27, 1)",
      "bookmark_text": "rgba(222, 89, 89, 0.85)",
      "toolbar_field": "rgba(124, 138, 126, 1)",
      "toolbar_field_text": "rgba(171, 184, 153, 1)",
      "tab_line": "rgba(94, 33, 235, 0.48)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{78625699-5a4f-442e-a14c-a6aee8707930}"
    }
  }
}