Examine source code of AppleMusic Web for OBS

{
  "manifest_version": 2,
  "name": "AppleMusic Web for OBS",
  "description": "Updates files with the track, artist, album, and album art in your Downloads folder when Apple Music is playing in a tab.",
  "version": "1.1.1",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icons/apple-music-web-obs-48.png",
    "96": "icons/apple-music-web-obs-96.png"
  },
  "permissions": [
    "tabs",
    "downloads",
    "webNavigation",
    "https://music.apple.com/*"
  ],
  "applications": {
    "gecko": {
      "id": "apple-music-web-obs@hxc.gd"
    }
  }
}