Examine source code of Oh Yes! Clipboard

{
  "manifest_version": 2,
  "name": "Oh Yes! Clipboard",
  "version": "1.1",
  "description": "Paste all archives, ARGH!",
  "permissions": [
    "activeTab",
    "storage",
    "clipboardRead",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    "overlay.html",
    "overlay.js",
    "style.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{6b312cdb-6d27-4d87-9d22-8fa72bc59ce2}"
    }
  }
}