PhAB color resolution

Hi! I’m working with QNX 6.1, my graphics driver is OK using 16-bit high color in Photon. But developing an applicantion in PhAB I can use only 256 colors! When I import an image JPEG from disk, it becomes 256 colors too!
Please, someone knows how to configure it?

I´ve just solved the problem. I exported the image as Bitmap and it worked well!