If you downloaded my Secret Bookcase Doors (if not, WHY not?!!!!), I wanted to repeat a comment I made on these downloads in case you missed it.

Lighting. Doors in The Sims don't light up in the same way objects do. That means that the bookcase door when used indoors, by default, is in permanent dark shadow, unlike its surrounding bookcases. This is a global problem with the way doors are treated in-game and no-one has yet come up with any workaround for the problem.

Therefore, MY workaround is to provide various different lighting shades of door so you can pick the best to match the individual light levels in your rooms. It's not a perfect workaround, but you can at least make perfect matches for movies or story-making shots.

If you find that the lighting levels aren't ideal, drop me a line and I'll see what I can do for you (like make new versions for you to try, or maybe I'll just suspend your body in one of my gibbet cages, for instance).