Read the readme before you do anything.
Thanks to Z33 for rcotool and the research on the textures.
This time there is less hex editing required, all you need is a nice image editing program (aka Photoshop, etc) and you can edit your wave's texture.
Apply filters to that image in Photoshop/whatever, and you can change your XMB's wave textures easier than ever.
Stuff you can post: screenshots, tips, etc.
Happy wave hacking! //from DarkStone and vb_master(Vulpix)