# How to customize the ONRAMP widget

#### Widget Appearance Customization

You can customize the appearance of the widget to match your project's style — simply add the desired parameters to the widget's URL.

The following settings are supported:

* Button color scheme
* Logo visibility
* Corner radius
* Light or dark theme

All parameters are optional and can be used individually or in combination.

<table><thead><tr><th width="178.953125">Parameter</th><th width="274.25">Description</th><th>Field</th></tr></thead><tbody><tr><td><strong>color</strong></td><td>Button color theme (default: Calypso color <code>256eff</code>)</td><td><mark style="color:blue;">optional</mark></td></tr><tr><td><strong>logo</strong></td><td>If set to <code>false</code>, the Calypso logo is hidden; if the parameter is omitted or set to <code>true</code>, the Calypso logo is displayed</td><td><mark style="color:blue;">optional</mark></td></tr><tr><td><strong>radius</strong></td><td>Corner radius</td><td><mark style="color:blue;">optional</mark></td></tr><tr><td><strong>theme</strong></td><td>Color theme (default: light theme if not specified)</td><td><mark style="color:blue;">optional</mark></td></tr></tbody></table>

**Widget url with customize parameters example:**

```

https://pay.calypso.finance/onramp?account=0xf54aa3ec1f12a4eb3c8bf565078b371f3736f434&widgetKey=509ca990-8a94-45d5-858a-0971a1b7e2e9&idempotencyKey=dee72a7a-0e6d-4e7d-baf0-e7bf02a895d0&color=256eff&logo=true&radius=6&theme=light

```