Trade for vision impaired

I got my friend to play PoE but he has a hard time trading as he can't see the socket color properly (like symbols in-game), would like to ask to consider to add change that option too in trading (if there is any of that, can anybody point me where?)

you can put in colors on the trade sight. there is a box for R G B then boxes next to them, and everything that comes up will have that color configuration.