Personally I feel adding colored Start/Select buttons in a Gameboy build ties the whole thing together, more so than the generic colored buttons. That said Retro Modding's S/S buttons are the way to go. I've been playing Gameboy since the 90s and I can't tell the difference between these buttons and the originals. They look great and feel great. I always go to Retro Modding for these particular buttons, their quality and reproduction is second to none.