Examine source code of InviTube

{
  "name": "InviTube",
  "description": "Redirect YouTube to Invidious.",
  "version": "1.3.4",
  "manifest_version": 2,
  "author": "Indogermane",
  "background": {
    "scripts": [
      "src/background/background.js"
    ]
  },
  "options_ui": {
    "page": "src/options/options.html"
  },
  "icons": {
    "800": "icons/Icon.png"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "icons/invidious.png"
  },
  "page_action": {
    "default_icon": "icons/youtube.png",
    "default_title": "Open on YouTube"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "src/content/content.js"
      ]
    }
  ],
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "storage",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "InviTube@Indogermane",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}