Examine source code of Lofi Player

{
  "manifest_version": 2,
  "name": "Lofi Player",
  "version": "1.0.1",
  "description": "Play lofi music and videos in a standalone window with video support, album art, and full keyboard controls",
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_title": "Lofi Player"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "web_accessible_resources": [
    "player.html",
    "assets/tracks.json",
    "lofi/*.mp3",
    "lofi/*.mp4"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "lofi-player@quizthespire.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "optional": [],
        "required": [
          "none"
        ]
      }
    }
  }
}