I've noticed the discoloration issue with windows and other objects too! Plus, I don't know if it's just a glitch or my computer (I'm on a laptop with low/medium graphics as well) but if I try to change the wallpaper in a room that already has curtains or other things applied, they get booted to my inventory. Why? I can put them back afterwards, but it's annoying. Especially when you use 'alt' to position something 'just right' and have to do it all over again. Like for instance, I put some of the small cupboards at ground level for a special design and changing the wallpaper removes them. Gah! So frustrating!
Edit: On a sidenote, but still a 'color' issue, the lighting is frustrating when designing too. You can change the intensity and color of lights in 'live' mode but not in build mode. The default is the yellow lights and it makes all the whites look yellow or gray, blues look green, etc. The default really should be the neutral white AND we should be able to adjust lighting in build mode. Does anyone else find that annoying?
