Examine source code of Magical Unicorns

{
  "name": "Magical Unicorns",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Magical Unicorns.png"
    },
    "colors": {
      "frame": "rgba(193, 222, 240, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(194, 222, 242, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(194, 222, 242, 0)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e5944d12-b7e6-4887-9416-1fabdde6d8b0}"
    }
  }
}