The IceWM window manager is really versatile and easily themable and configurable. A few such scripts can be downloaded from the Box-Look site's IceWM Themes page.
This repository contains a collection of themes - each directory contains one theme and the related files.
Here are some themes I wrote.
- Mars Text - Theme with redish color palette using textual buttons.
These themes were intentionally kept short. For details see the IceWM theme section of my site.