Examine source code of Reel Audio Fixer

{
  "manifest_version": 3,
  "name": "Reel Audio Fixer",
  "version": "1.0",
  "description": "Stops Instagram reels from leaking audio streams so your sound keeps working during long scrolling sessions.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "reel-audio-fixer@bam.ad",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "js": [
        "reaper.js"
      ],
      "run_at": "document_idle"
    }
  ]
}