I cannot get rid of these persistent colors, where are those defined?

The preview is pulling the caption image from the image defined in the "Glass" section right underneath.  The preview of the rest of the frames is pulling from the normal frame sections.  If you open up a Windows Explorer window, which uses the Glass Frames, I believe it will be blue.

Thanks!
Note to myself: in SKS, click on every single item, even if they seem unrelevant.   

As a tip, if a section is black in SKS it means it has an image defined on it.  Grey means it doesn't so not in use.