Gordon

Does anybody know why this is not on rebrickable anymore? I was collecting parts for this...

Hello, I want to build this magnificent creation and have one question in topic of collecting parts for it. Part 15100 Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise (according to rebrickable) in white color. Is this part very visible? Can I use black one instead? (planing to color change from white) Best Regards