Yeah there are a bunch of variations in the dampers as well. I just realised what you meant by the colours earlier - they are basically red or black, but they have a coloured mark to denote the part number, exactly the same as the springs do.
There seem to be a few options on ebay for dampers as well as springs, all of which I suspect will be comfort versions. TRW, Meyle, KYB. Take your pick
