Examine source code of Text Input Clearing

{
  "manifest_version": 2,
  "name": "Text Input Clearing",
  "version": "1.0.1",
  "description": "Clears all text inputs and textareas on the page.",
  "icons": {
    "64": "icons/icon64.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/icon64.png",
    "default_title": "Clear All Inputs",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{175035ca-c703-4b71-bb35-a76603924516}",
      "strict_min_version": "78.0"
    }
  }
}