I don't think it is the shading.
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I don't know what I did but everything. EVERYTHING is grey. The enviroments, figures, props, clothes. With the exceptiong of one pair of pants and a muted tub top everything is grey. When it happened I was checking on my render settings to augment my lighting a bit. Once it happened though I tried to set them back to the origonal. I couldn't remember the origanal settings so then I uninstalled the studio and reinstalled but the problem still persists. I am pretty sure I have read all of the forums on the subject and tried those fixes but nothing seems to be working. This happened once before and I was able to fix it but nothing is working this time.
Comments
What version of D|S are you using & what operating system?
There should be a button to reset the Render Settings to Default. As you noticed, uninstalling anbd reinstalling DS doesn't undo settings changes you've made.