Made a few modifications to the KaoUI v4 skin.. The 'blue' theme looked a bit too blue (too bright) so I decided to change the skin a bit. I changed most of the gold/brown pieces (like the gauges, window borders, etc.) to gray because it looked better, changed the scroll and title bars to a paler shade of blue, and darkened the background texture a bit. Also included in the .zip is t.king's Celtic inventory mod.
Here's the screenshot: (click to enlarge - may load a bit slowly)
One final note, this mod does not include any new .xml files, it only contains .tga's. In other words, it shouldn't screw up your window mods that are already installed in the mod directory.
edit: spelling