I did’nt design the genre icons … as stated in the links, user “frodo19” at the XBMC forums did.
Sorry, but i don’t desgin genre folder icons. (because, personally… i don’t use them)
There’s a whole thread here with genre icons if you wanna check it out … (or google, is your next alternative)
http://community.wd.com/t5/WD-TV-Themes/Movie-Genre-Thumbs-plus-link-to-others/td-p/562337