The package provides an environment for coloured and framed text boxes with a heading line. Optionally, such a box can be split in an upper and a lower part; thus the package may be used for the setting of LaTeX examples where one part of the box displays the source code and the other part shows the output. Another common use case is the setting of theorems. The package supports saving and reuse of source code and text parts.

The author is Thomas F. Sturm. The package is Copyright © 2006-2014 Prof. Dr. Dr. Thomas F. Sturm.