Hello,
I just compiled and run that small example from Picasso96 devkit:
(you can see the code here): https://paste.ofcode.org/gbNW7R74YWkqJ5x2fiL77K
I was checking the 320x256x32 mode and the result is weird. it says that there is 4 bytes per pixel but.. 24 bits per pixel.. why not 32 bits?