In article YYghe.10188$D91.3977@fed1read01,
MikePalmer wrote:

The 3600a already has a 256-colors screen.

You're correct. My mistake. I misread Garmin's "16 bit color" as 16 colors.

16 bit color is about sixty-five thousand colors. 256 colors is only 8
bits. So which does it have?