Examine source code of Patreaction Player

{
  "manifest_version": 2,
  "name": "Patreaction Player",
  "version": "1.1",
  "description": "Make videos work smoothly in Patreaction website.",
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "96": "icon-96.png"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://*.mux.com/*",
    "*://*.vimeo.com/*",
    "*://*.streamable.com/*",
    "*://www.patreaction.com/*",
    "*://host.patreaction.com/*",
    "*://patreaction.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "patreaction-player@patreaction.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}