Are you talking about the screen preferences screen shapshot ? The only working Amiga i have is the a1200, which I bought on ebay Untested.
Does the 256 colors mean its a amiga 600 motherboard ?
Thans, Peter
There are a couple of pictures of a motherboard that is not a 1200. The one titled "ROM" shows a version 2.05 ROM and a 68000 CPU which are not present in a 1200 (should be a 3.0 or 3.1 on two chips and a 68020 CPU) As Pan1K said it looks like a 600 board but I'm not as familiar with those as I am with the 1200.
Oh, 600's only have 32 colours, except in HAM mode.