EntrySet.Controls Namespace
RichListBox Component
A RichListBox control displays a list of items from which the user can select one or more. Unlike regular ListBox the rich text formatting can be used.

A PureComponents RichListBox control displays a list from which the user can select one or more items. If the total number of items exceeds the number that can be displayed, a scroll bar is automatically added to the RichListBox control.
Appearance
The appearance of the RichListBox is influenced by the RichListBoxStyle class setting. Style contains another subclass ItemStyle, which determines the appearance in the item.
In properties, which determine the color, you can also use Transparent color. That way you can achieve interesting result.
See also
Rich Text Formatting