Examine source code of a1

{
  "name": " a1",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "pexels-anastasiya-trefelova-9529271.jpg"
    },
    "colors": {
      "frame": "rgba(25, 51, 112, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(181, 126, 126, 1)",
      "bookmark_text": "rgba(199, 64, 64, 1)",
      "toolbar_field": "rgba(51, 8, 8, 1)",
      "toolbar_field_text": "rgba(164, 40, 166, 1)",
      "tab_line": "rgba(224, 205, 81, 1)"
    }
  }
}