Examine source code of Transparent Liquid

{
  "name": "Transparent Liquid",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "2001-2.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 0.08)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(3, 3, 3, 0.54)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(79, 193, 255, 0.59)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e14ee7bd-7654-44c2-baa5-2a825dd105d0}"
    }
  }
}