Examine source code of ClipboardX Pro

{
  "manifest_version": 2,
  "name": "ClipboardX Pro",
  "version": "49.0.0",
  "description": "ClipboardX Pro — to save, search, and organize everything you copy for faster productivity.",
  "author": "ClipboardX Team",
  "permissions": [
    "contextMenus",
    "storage",
    "clipboardWrite",
    "clipboardRead",
    "tabs",
    "notifications",
    "alarms",
    "downloads",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/cb16.png",
      "32": "icons/cb32.png",
      "48": "icons/cb48.png",
      "96": "icons/cb96.png",
      "128": "icons/cb128.png"
    },
    "default_title": "ClipboardX Pro"
  },
  "icons": {
    "16": "icons/cb16.png",
    "32": "icons/cb32.png",
    "48": "icons/cb48.png",
    "96": "icons/cb96.png",
    "128": "icons/cb128.png"
  },
  "options_ui": {
    "page": "pages/options.html",
    "open_in_tab": true
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+V",
        "mac": "Command+Shift+V"
      },
      "description": "Open ClipboardX Pro"
    },
    "quick_paste": {
      "suggested_key": {
        "default": "Ctrl+Shift+X",
        "mac": "Command+Shift+X"
      },
      "description": "Quick Paste Last Item"
    },
    "search_clipboard": {
      "suggested_key": {
        "default": "Ctrl+Shift+F",
        "mac": "Command+Shift+F"
      },
      "description": "Search Clipboard"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    "lib/*.js",
    "icons/*.png",
    "pages/*.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4c697b75-22b8-4af7-8230-f4fb4c350598}",
      "strict_min_version": "58.0"
    }
  }
}