Examine source code of AudioTextCopy

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.0.4",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "commands": {
    "toggle_selectext": {
      "suggested_key": {
        "default": "Ctrl+Shift+X",
        "mac": "Command+Shift+X"
      },
      "description": "Toggle Selectext"
    }
  },
  "web_accessible_resources": [
    "icons/icon-48.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7d24b5cd-831b-429e-86bd-e598c15f6c18}"
    }
  }
}