Help with the GtkRadiant wikibook.. Thread

So, about a year ago, i started a Wikibook about Gtkradiant... And it's been my spare-time-project since then.. But, there are some areas, like shaders and curves, where i could use some help.
En.wikibooks.org

So, if you are a Gtkradiant nerd, and want to help a little with this, you're more than welcome..

Edited by: Yzmo