What is it?
It's a program that edits Meka's various configuration files (meka.cfg, meka.inp, meka.blt, meka.thm, meka.msg, mekaw.cfg). It allows you to change every setting not available via Meka's GUI, and many that are.
Screenshot may be of an older version
Updated for Meka 0.72
Fixed a bug with the theme editor saving the background image wrongly
Blitter selection is now saved correctly; improved tab order in theme editor