This is ctftool, an interactive command line tool to experiment with CTF, a little-known protocol used on Windows to implement Text Services. This might be useful for studying Windows internals, ...
You can find the latest release here. $ cat test/square.txt (COLOR 1) ; red (SOLID_FILL_POLYGON 10 10 10 190 190 190 190 10) (COLOR 2) ; yellow (SOLID_FILL_POLYGON 20 20 20 180 180 180 180 20) (COLOR ...