I'm having trouble darkening this base (specifically the left side):

I've tried messing with the Brightness/Contrast settings in PSP7, but I can't see to find one that works without affecting the right side.
Would layers work with this case?

I've tried messing with the Brightness/Contrast settings in PSP7, but I can't see to find one that works without affecting the right side.
Would layers work with this case?
