Define Dark background

How is it that you define a "Dark" background. In the script you can define the text and text shadow color of light and dark backgrounds. My background is black and I set the script to show white text with dark gray background but this show's up... Any help?

i53.tinypic.com/vzv7np.png

Thanks in advance :)

Did you try switching the two?

Yes I did, now the pokedex works correctly but the messages also have the same colors and can't be read. It reads everything like if it were a light background.