G.SKILL International Enterprise Co., Ltd., the world's leading manufacturer of extreme performance memory and gaming peripherals, is announcing the release of the Crystal Crown Keycap upgrade set, featuring a dual-layer design with a fully transparent lower half to enhance the luminosity of LED or RGB backlights of mechanical keyboards. Compatible with mechanical keyswitches with cross-shaped MX style stems and designed with a carefully selected font lettering for high legibility, the Crystal Crown Keycap set upgrades the experience and feel of a professional mechanical keyboard.