Examine source code of mcr aesthetic

{
  "name": "mcr aesthetic",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "117042019_428281428069447_441380064140225057_n.png"
    },
    "colors": {
      "frame": "rgba(84, 2, 7, 1)",
      "tab_background_text": "rgba(8, 0, 0, 1)",
      "toolbar": "rgba(148, 8, 8, 1)",
      "bookmark_text": "rgba(46, 32, 32, 1)",
      "toolbar_field": "rgba(79, 3, 3, 1)",
      "toolbar_field_text": "rgba(140, 126, 126, 1)"
    }
  }
}