Examine source code of Custom Cursor & Icon Extension

{
  "manifest_version": 2,
  "name": "Custom Cursor & Icon Extension",
  "version": "1.0",
  "description": "Upload and set your custom cursor and browser action icon!",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "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"
  },
  "data_collection": {
    "policy_url": "https://docs.google.com/document/d/1_z9yXeo6TAvDGhBDK_-K5k-zKufB3gcKMaPwxYiz4pw/edit?usp=sharing",
    "data_collections": [
      {
        "name": "none",
        "description": "This extension does not collect or transmit any data outside the browser.",
        "types": []
      }
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      },
      "id": "{54b58618-46cf-42c9-83ce-6df356e121c9}"
    }
  }
}