Examine source code of Xoi Xeo v4

{
  "name": "Xoi Xeo",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Xoi Xeo.png"
    },
    "colors": {
      "frame": "rgba(20, 75, 204, 1)",
      "tab_background_text": "rgba(196, 32, 32, 1)",
      "toolbar": "rgba(0, 201, 20, 0.2)",
      "bookmark_text": "rgba(217, 103, 83, 1)",
      "toolbar_field": "rgba(250, 0, 0, 1)",
      "toolbar_field_text": "rgba(194, 178, 31, 1)",
      "tab_line": "rgba(214, 66, 199, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a45a2c08-54da-4f4b-bfca-e6c6b23c4371}"
    }
  }
}