Examine source code of Escudo cap

{
  "name": "Escudo cap",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "simbolo cap(2).jpg"
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0)",
      "toolbar_field": "rgba(250, 3, 3, 0.75)",
      "toolbar_field_text": "rgba(5, 5, 5, 1)",
      "frame": "rgba(250, 5, 13, 0.01)",
      "tab_background_text": "rgba(184, 22, 22, 0.87)",
      "bookmark_text": "rgba(242, 9, 9, 1)"
    }
  }
}