Examine source code of Black_Powerless

{
  "name": "Black_Powerless",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "black-panther-1200-1200-675-675-crop-000000.jpg"
    },
    "colors": {
      "toolbar": "rgba(44, 59, 77, 1)",
      "toolbar_field": "rgba(79, 161, 160, 1)",
      "toolbar_field_text": "rgba(46, 82, 84, 1)",
      "frame": "rgba(31, 37, 48, 1)",
      "tab_background_text": "rgba(63, 148, 161, 1)",
      "bookmark_text": "rgba(63, 126, 140, 1)"
    }
  }
}