Examine source code of Apple Emoji for Windows

{
  "manifest_version": 3,
  "name": "Apple Emoji for Windows",
  "version": "0.1.1",
  "description": "Replaces emoji on web pages with Apple Color Emoji.",
  "browser_specific_settings": {
    "gecko": {
      "id": "apple-emoji-windows@vieira.tools",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "142.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "styles/apple-emoji.css"
      ],
      "js": [
        "content-script.js"
      ],
      "all_frames": true,
      "match_about_blank": true,
      "match_origin_as_fallback": true,
      "run_at": "document_start",
      "css_origin": "user"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "content-script.mjs",
        "emoji/emoji-map.mjs",
        "emoji/images/*.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}