Make Custom Keyboard Match the Native iOS Keyboard Style

It would be great if the custom keyboard style could match the native iOS keyboard more closely.

Compared to the native keyboard, the custom keyboard has larger keys and more rounded corners. I would like to use the custom keyboard, but these visual differences make it less comfortable and consistent with the native iOS keyboard.

Could you add options to adjust the key size and corner radius, or provide a preset that makes the custom keyboard look identical to the native iOS keyboard?

Ideally, the key dimensions, spacing, and corner radius would match the native keyboard as closely as possible.