Web Marker - Draw on Websites

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Web Marker - Draw on Websites",
  "description": "Draw on any webpage in real time! Draw, highlight, add shapes & more. Easy to use, perfect for studying & teaching.",
  "version": "1.3.42",
  "manifest_version": 3,
  "author": "[email protected]",
  "permissions": [
    "scripting",
    "activeTab",
    "storage"
  ],
  "background": {
    "service_worker": "lib/background.js"
  },
  "action": {
    "default_title": "Draw On This Page"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/capture.mp3",
        "icons/icon32.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "windows": "Ctrl+Shift+L",
        "mac": "Command+Shift+L",
        "chromeos": "Ctrl+Shift+L",
        "linux": "Ctrl+Shift+L"
      }
    }
  }
}