Rounded corners can add a nice touch to your email designs - and they're supported across many components in our email builder.
Not all email clients support rounded corners. In the case where it is not supported, the corner will appear with a standard straight-edged / 90 degree angled corner instead. You can test your email design with Litmus inbox testing to see how it will display in other email clients.
Rounded corners can be added to a component by selecting the component in question, then adjusting the rounded corner setting in the settings panel for that component, as shown below.
Clicking the lock icon (to set it to 'unlocked') allows you to change the values independently of one another.