Examine source code of Clear Browser Cache

{
  "name": "Clear Browser Cache",
  "version": "1.0",
  "manifest_version": 2,
  "description": "_Clear Browser Cache",
  "author": "me0",
  "icons": {
    "16": "icons/bin.svg",
    "32": "icons/bin.svg",
    "48": "icons/bin.svg",
    "96": "icons/bin.svg",
    "128": "icons/bin.svg"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  },
  "browser_action": {
    "default_icon": "icons/bin.svg",
    "default_title": "Clear Browser Cache"
  },
  "permissions": [
    "browsingData",
    "notifications",
    "storage"
  ],
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "F9"
      },
      "description": "Shortcut for Clear Browser Cache"
    }
  },
  "default_locale": "en"
}