Examine source code of Nebula Clip

{
  "manifest_version": 2,
  "name": "Nebula Clip",
  "version": "1.0",
  "description": "A stylish clipboard manager with offline storage and elegant design.",
  "permissions": [
    "clipboardRead",
    "storage",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "src/js/background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/js/content.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "src/html/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0c54508a-402c-41ba-9e27-d01b9f7ca123}"
    }
  }
}