That's the thing...have you ever tried modifying an SMF theme?
It makes me go a little cross-eyed.
As far as I can tell, the color schemes in Dilber MC have plenty of common elements to them so it wouldn't be a huge project to convert all of the colors and such over.
If it's too involving it probably won't get done for quite a while, though. I've had some pretty bizarre hours as of late and I've been cherishing every bit of free time I could get. If it's not much work (and the theme's license allows it) I'll probably make a "Dilber MC (Light)" theme or something like that.
Also, if you (or anyone else) see a nice-looking theme on SMF's site, feel free to pass me the link. I wouldn't mind having a lighter-weight theme or two on here for space-conscious people or devices.