Quoted from Blackjacker:Is the SIGMA ROM for ColorDMD still a thing? Couldn't the OP just load that onto the ColorDMD, and set it to red?
That's what I was thinking... just install the SIGMA rom and pick whatever color you want for now.
http://www.colordmd.com/support_firmware.html#SIGMA%20ROM
Maybe email ColodDMD with your displays info, just to confirm it's comparable.