So, what are all the Windows XP themes?

Used the Blue Luna base with underwater-themed assets. Nature: Based on the Olive Green Luna scheme.

These custom themes were the digital equivalent of bedroom posters. They were the first real act of personalization for a generation. In a pre-iPhone world, your PC’s theme was your public face online (via screenshots) and your private sanctuary. The goths used black and red themes with jagged fonts. The anime fans used pastel themes with chibi start buttons. The "producers" used brushed metal themes with tiny taskbars.

Often confused with the standard Royale, "Energy Blue" was simply the official name for the Media Center theme when packaged as a standalone download for Windows XP Home and Professional. It is identical to the Royale above, but the download file included a custom wallpaper with glowing green energy waves.