Hello! I made a replacement for the PortableApps.com Menu's default theme, to make it look more like Windows 8. To install it, extract the "Default" folder from the zip, and (after backing up the original,) move the folder to X:\PortableApps\PortableApps.com\App\Graphics\Themes, and overwrite the original. The theme has most of the background colors replaced with ones that are closer to Windows 8, too, so be sure to check them all out! Other than the scroll icons, none of the icons are replaced.
Hope you enjoy! If anyone can help me make it so that it doesn't have to replace the default theme, that would help a lot!
Preview: http://i.imgur.com/p1KFRCS.png
Download: https://mega.co.nz/#!EgU0lSpJ!HlbnZjI4wY6mOZYtq3eykPiJNE7EBXbQobXVH565ckY
Also, yes, I made an account just to post this. I've used the PortableApps platform for years, though, and love it so much.