Examine source code of Instanse Color Picker

{
  "manifest_version": 3,
  "name": "Quick Color Picker",
  "description": "🎨 Instantly pick any color from any webpage. Simple, fast, and accurate — perfect for designers, developers, and creators",
  "version": "1.0.4",
  "author": "STRIX-K9",
  "browser_specific_settings": {
    "gecko": {
      "id": "quick-color-picker@strix-k9.com"
    }
  },
  "action": {
    "default_title": "Pick a color",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon_16.png",
      "32": "icons/icon_32.png",
      "48": "icons/icon_48.png",
      "128": "icons/icon_128.png"
    }
  },
  "icons": {
    "16": "icons/icon_16.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "permissions": [
    "storage",
    "clipboardWrite"
  ]
}