Examine source code of Color Preview Picker

{
  "manifest_version": 3,
  "name": "Color Preview Picker",
  "version": "1.0.0",
  "description": "Preview and copy color values locally in a simple popup.",
  "browser_specific_settings": {
    "gecko": {
      "id": "color-preview-picker@example.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "clipboardWrite"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Color Preview Picker"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "service_worker": "background.js"
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  }
}