X-tlk is a very simple X11 Toolkit I wrote in the late 80s/early 90s as a base for
a series of small programs that mostly dealt with form based data
entry. The basic idea behind it is to use a resolution independent
fixed row/column layout. I came across it again lately and thought it
might be a good idea to put it online.
This is how the Test program included in the source looks like:
Same program started with option -slow using 1 bit color depth: