Examine source code of SmartText - Text Expander

{
  "manifest_version": 3,
  "name": "SmartText - Text Expander",
  "version": "3.1.0",
  "description": "Text expansion Chrome extension - create shortcuts that expand into full phrases instantly",
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background/service-worker.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/content-script.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_title": "SmartText",
    "default_icon": {
      "16": "assets/icons/icon16.png",
      "48": "assets/icons/icon48.png",
      "128": "assets/icons/icon128.png"
    }
  },
  "icons": {
    "16": "assets/icons/icon16.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "commands": {
    "toggle-overlay": {
      "suggested_key": {
        "default": "Ctrl+Shift+Q",
        "mac": "Command+Shift+Q"
      },
      "description": "Toggle shortcuts overlay"
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; connect-src 'self' wss://0.peerjs.com https://0.peerjs.com"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/*",
        "libs/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "smarttext@ashutosh.local",
      "strict_min_version": "126.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "126.0"
    }
  }
}