Examine source code of Aina Rive

{
  "name": "Aina Rive",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Aina Rive.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 135, 151, 1)",
      "toolbar": "rgba(255, 255, 255, 0)",
      "bookmark_text": "rgba(224, 98, 140, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0)",
      "toolbar_field_text": "rgba(235, 97, 122, 1)",
      "tab_line": "rgba(114, 130, 226, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a4c6e11f-8586-4474-b302-3dc961be8350}"
    }
  }
}