Mpskit can now both unpack and pack part of MCC+WMCC.MCC file pair. This part contain all the buttons from main menu and character creation. Colors in unpacked images are mixed but they will work correctly in-game. Also images cannot be resized.

This should allow to modify text labels on buttons albeit with some difficulty (because of mixed colors). I tested it briefly and there is an issue in main menu with left gargoyle (http://imgur.com/a/SK5jX). If xebax or someone else decides to continue with translation I can try to fix it.

Decoder source code is in mpskit/mcc.py file. I can also describe format in more detail if requested.

That was challenging and I learned a lot. I'm impressed with your love to old games like this one and I can totally relate (trying to remake Sid Meier Colonization myself). So thank you, especially xebax for keeping them alive. Also thanks raulpuro for pointing my attention to this thread.

https://github.com/institution/mpskit