This is a patched Xmahjongg binary.
Support of full screen refreshes was added.
When you click on two matching tiles iLiad's screen refreshes black&white.

manual installation:
After installation of the old installation package, replace the file _local/bin/xmahjongg 
on your memory card with the included file xmahjongg.

Let's play Mahjongg! Thread:
http://www.mobileread.com/forums/showthread.php?t=15459