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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Material Design Color Palette - Click to Copy",
  "description": "Click to copy Material Design color palette. Copy in #HEX HEX RGB( ) RGBA( ).",
  "version": "1.1.0",
  "icons": {
    "16": "icon_16.png",
    "48": "icon_48.png",
    "128": "icon_128.png"
  },
  "short_name": "Material Design Color Palette",
  "action": {
    "default_title": "Material Color Palette - Click to Copy",
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage"
  ],
  "applications": {
    "gecko": {
      "id": "material-color@renrah.dev",
      "strict_min_version": "42.0"
    }
  }
}