What does this even mean? Is it simply 16-bit color OR is there a specific palette? Without being familiar with the 1600 I find this wording very confusing since many retro devices DO have a limited palette - but 16-bit color is not a limited palette IMHO.

If this is just saying that 24 or 18 bit-color isn’t allowed I think it could be better worded.

I mean that you should use the normal 16-bit color, not more. Only 65536 colors

Thank you Josh Goebel for asking this and for making this clear for everyone. I was up on the interwebs searching up the color pallette that this phone uses.

Glad I could help. :-) Thanks for clarifying.