feel free to design your own … or use other people’s creations
eg. I borrowed these from Aeon Nox and resized them
http://community.wd.com/t5/WD-TV-Themes/Alaska-Resurface-WDTV-LIVE-HUB-amp-SMP/m-p/562078#M11588
Other designs here: http://community.wd.com/t5/WD-TV-Themes/Movie-Genre-Thumbs-plus-link-to-others/td-p/562337