matbuttons is a simple matlab script for creating gui elements and especially buttons in arbitary sizes and shapes.
Geps_summer_treat is a small demo that serves as a guide for creating buttons with practically no creative limitations at the price of exposing some java functionality by undocumented methods and reqires a little bit of photoshop/gimp skills.

See manual.pdf for a quick overview and run Geps_summer_treat.m for inspecting the different flavors (tristates, toggles, embedded, etc.). Callback's functions are implemented nested only for demostration purposes, mainly for viewing code snippets without much scrolling.