If you need a dark background in WINE apps you can try appending this dark background registry snippet to .wine/user.reg. If you want anti-aliasing (and don't already have it), try this antialiasing registry snippet also (this sets greyscale anti-aliasing; ClearType is not recommended unless you can calibrate the gamma setting to your monitor).
If you use the "Wineskin Winery" wrapper on a Mac, the .reg files will be located in your application's Contents/Resources directory.
If those colour changes cause unreadable text in printouts, you might need to delete the relevant colour commands from the PostScript, e.g. if you're using a machine behind a firewall that runs CUPS and you have administrator access then go to http://localhost:631 and Add Printer, device LPD/LPR printer, URI socket://localhost:12000, make Generic / Generic PostScript printer; before printing to this printer do
nc -l -p 12000 | grep -v "^1.00 1.00 0.00 setrgbcolor$" | grep -v "^0.89 setgray$" | ps2pdf - output.pdf(may need adjusting for some CUPS/Wine versions). Alternatively if you don't have root access but have compiled your own WINE, you can temporarily disable accidental printing by moving wineps* out of lib/wine.