Examine source code of Stream Audio Only

{
  "name": "Stream Audio Only",
  "version": "1.0.0",
  "manifest_version": 2,
  "description": "Stream Audio Only is a browser addon that enables users to stream audio exclusively from YouTube, reducing bandwidth usage while providing an uninterrupted listening experience. Perfect for music, podcasts, and other audio content, it enhances efficiency without compromising quality.",
  "homepage_url": "https://github.com/Shriradhakrishnasharnam/Stream-Audio-Only",
  "icons": {
    "16": "icons/audioicon16.png",
    "38": "icons/audioicon38.png",
    "48": "icons/audioicon48.png",
    "96": "icons/audioicon96.png",
    "128": "icons/audioicon128.png",
    "512": "icons/audioicon512.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "Shriradhakrishnasharnam-StreamAudioOnly@gecko.id"
    }
  },
  "background": {
    "scripts": [
      "js/global.js"
    ]
  },
  "permissions": [
    "tabs",
    "webRequest",
    "*://*/*",
    "webRequestBlocking",
    "storage"
  ],
  "browser_action": {
    "default_title": "Stream Audio Only"
  },
  "commands": {
    "_execute_browser_action": {
      "description": "Toggle Stream Audio Only Mode On/Off"
    }
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "*://*.youtube.com/*",
        "*://*.youtube-nocookie.com/*"
      ],
      "js": [
        "js/youtube_audio.js"
      ],
      "run_at": "document_end"
    }
  ]
}