you need to be a tailor with at least 55.0 skill ... and lots of cloth
On the tailor menu it states *The item retains the color of this material
(i dont see an option to turn that off for cloth made items, just leather made ones)

First dye your cloth with a cloth dye tub unless you want pure black then you should use the natural 'black' dye tub ... (otherwise you get what looks like a smokey grey)
if you want to use reward cloth then of course you dont need to dye the cloth. It takes 25 yards of cloth to make either size gaza (square is smallest the other size is like 2 squares put together)


I wish we could redye them afterwards .... instead of having to make new ones because of deco themes ...
Not complaining .. just a wish .. oh and they are not recycable ... (cant turn them back into cloth - so either you sell them, give them away, or toss them in poof can)

Hope that helps