Perhaps you know that Impulse Tracker from Jeffrey Lim had the same look&feel like the Screamtracker from Future Crew. Especially there was a color theme called “Gold” which had the same colors like Screamtracker. Although Renoise is officially called “Fasttracker-like” I imagine that many people used Impulse Tracker before, just like me. If you’ve seen these colors for years, you don’t wan’t to miss it. 
In Impulse-Tracker the RGB values reach from 0 to 63, in Renoise they reach from 0 to 255. I’ve rescaled all the values and created a theme called “impulsetracker.xml” which gives you EXACTLY the old colors from Impulse-Tracker / Screamtracker (at least in the windowed mode…). You can download the theme here :
http://www.elysis.de/it_theme.zip
Have fun 
a grey one … not a little bit boring?!