Examine source code of ollofire

{
  "name": "ollofire",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Progetto senza titolo-1.png"
    },
    "colors": {
      "frame": "rgba(168, 10, 34, 1)",
      "tab_background_text": "rgba(189, 189, 189, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(97, 29, 29, 1)",
      "toolbar_field": "rgba(41, 34, 34, 1)",
      "toolbar_field_text": "rgba(161, 69, 69, 1)"
    }
  }
}