May be best to get a poll going for ErgoDox owners to see which option (symmetrical or Brown right hand side) will get more orders and put the legends on the more popular one as a kit like the Ergodoxian from Granite, maybe drop the less popular option altogether?
I think it's be easiest to just support the symmetrical design and go cyan with legends on all the horizontal 1.5x, brown with legends on all the vertical keys, TBH.