Examine source code of QuickText

{
  "manifest_version": 2,
  "name": "QuickText",
  "version": "1.7",
  "description": "Define custom text shortcuts and hotkeys that expand into frequently used phrases, links, or templates.",
  "permissions": [
    "storage",
    "activeTab",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_script.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icon16.svg",
      "48": "images/icon48.svg",
      "128": "images/icon128.svg"
    }
  },
  "icons": {
    "16": "images/icon16.svg",
    "48": "images/icon48.svg",
    "128": "images/icon128.svg"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+E"
      },
      "description": "Open QuickText options"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "quicktext@example.com",
      "strict_min_version": "140.0",
      "android_strict_min_version": "142.0",
      "data_collection_permissions": {
        "is_data_collection": false,
        "uses_data": false,
        "data_collection_reason": "This extension does not collect any user data.",
        "required": [
          "none"
        ]
      }
    }
  }
}