1. Open the Checkout app
2. Click on Channels
Here you'll be able to modify the styling and visibility of the 'Button', 'Calculator' and 'Bubble' widgets
3. Click on 'Button'
4. Modify the height, the text size along with the color of the text and button. You can also modify the alignment of the text itself.
5. Click on 'Calculator'
6. Modify the text and frame color - additionally you can click on the calculator itself to observe the change in rates
7. Click on 'Bubble'
8. Here you can configure the visibility of the Bubble widget