Examine source code of 1984 - Cyberpunk

{
  "name": "1984 - Cyberpunk",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "bg.png"
    },
    "colors": {
      "frame": "rgba(21, 23, 29, 1)",
      "tab_background_text": "rgba(138, 139, 142, 1)",
      "toolbar": "rgba(28, 30, 39, 1)",
      "bookmark_text": "rgba(215, 218, 224, 1)",
      "toolbar_field": "rgba(21, 23, 29, 1)",
      "toolbar_field_text": "rgba(215, 218, 224, 1)",
      "tab_line": "rgba(133, 238, 167, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f4c6220a-bf88-4598-8431-bec083543031}"
    }
  }
}