The LCD colour correction test consists in a series of simple tests designed to find the precise colour characteristics of GP2X screens and to correct them. The test comes in two parts, one SDL program you run on your PC, and one program you run on your GP2X. Read more about LCD Colour Correction Test Programs (GP2x misc)
Simon Parzer ( http://www.gp32x.com/board/index.php?showuser=10065 ) has updated the recent Powder release. It's now in sync with the latest Release/Build 107. Read more about Powder (Release 107) (GP2x Game Port)