Examine source code of Simple URL Copy

{
  "name": "Simple URL Copy",
  "description": "A small extension that helps you to copy URL.",
  "author": "@ikedaosushi and Misoni",
  "version": "1.5.1",
  "manifest_version": 2,
  "icons": {
    "16": "icons/icon.svg",
    "24": "icons/icon.svg",
    "32": "icons/icon.svg",
    "48": "icons/icon.svg"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icons/icon.svg",
    "theme_icons": [
      {
        "dark": "icons/icon-dark.svg",
        "light": "icons/icon-light.svg",
        "size": 16
      },
      {
        "dark": "icons/icon-dark.svg",
        "light": "icons/icon-light.svg",
        "size": 24
      },
      {
        "dark": "icons/icon-dark.svg",
        "light": "icons/icon-light.svg",
        "size": 32
      },
      {
        "dark": "icons/icon-dark.svg",
        "light": "icons/icon-light.svg",
        "size": 64
      }
    ]
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+F",
        "mac": "MacCtrl+Shift+F"
      },
      "description": "Open popup.html"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "clipboardWrite"
  ],
  "content_security_policy": "default-src 'self'",
  "devtools_page": "popup.html"
}