Examine source code of ShareYT

{
  "manifest_version": 2,
  "name": "ShareYT",
  "description": "A free, cross-platform browser extension that allows you to easily share and react to YouTube videos with your friends.",
  "version": "0.0.7",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "identity",
    "storage",
    "notifications"
  ],
  "content_security_policy": "script-src 'self' https://apis.google.com/; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "shareyt-extension@shareyt.dev",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "optional": [
          "technicalAndInteraction"
        ],
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    "dashboard.html",
    "dashboard-script.js",
    "settings.html",
    "settings-script.js",
    "icon/*.png"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "ShareYT Extension",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "all_frames": true,
      "run_at": "document_idle",
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}