Add a border radius to the simple and carousel list (auto layout) card style and image. This plugin uses css editor and works with Squarespace 7.1.

From your Squarespace account, go to the Custom CSS Editor. Copy and paste the code below into the Custom CSS Editor box.

Simple List (Auto Layout)

Carousel List (Auto Layout)

Change both border radius values to your liking. Be sure to enable the Card Style within the list’s main settings.