24-bit on led matrix?

Development Boards Arduino
1

hi,

i am using arduino mega 2560 + sparkfun 32x32 rgb leb matrix + RGBmatrixPanel + Adafruit_GFX to display static images.

to my understanding the libraries give me either 12-bit (4-4-4) or 16-bit (5-6-5) output (i am not sure). the original images are 24-bit.

is there a library that supports 24-bit (8-8-8), or at least more colors than the above?

thanks,

eyal.