Shouldn't...well...the color of his energy change with skins?

Maybe it is just me, but I find it really ugly that the energy beams binding his arms to his main body and those below ISICs skull (which is seemingly made from the same energy, yet changes with each skin) never change color. I mean…even Melkas tiny energy bolts at her glove change color with each skin, but for ISIC, where this is something way bigger to see it isn’t done?