How to enable Round Corners?

The settings to enable rounded corners throughout the theme can be found at:

v4.5.1 and Laterv4.5.0 and Earlier

RealHomes Settings

Dashboard ➤ RealHomes ➤ Settings ➤ Styles ➤ Round Corners

Legacy Settings

Dashboard ➤ RealHomes ➤ Customize Settings ➤ Styles ➤ Round Corners

This feature is available in Modern and Ultra design only.