Navigate to the settings of the text Box component and click on the 'extras' tab.

The border colour can be any colour you've already added to LessonUp, and of course, you can also add a new colour here. The border thickness can range from 1 to 6, with 6 being the widest border thickness.

Important to note: When using rounded corners for the text boxes, we recommend vertically centring the text and setting the text margin to 2.