Description: Screenshot showing a code editing environment
in which each operation is represented graphically as a piece of a toy constructor
set (e.g. Lego). The graphical "pieces" of code have different colors
and appearances depending on what operation they are. One of the operations
is a repeat loop and its attributes (e.g. repeat conditions) are controlled
by form elements on the "piece".The graphical "pieces" of
code can be dragged around and assembled in different orders.
(Source: Screenshot from Lego MindStorms RCX software)