http://community.wdc.com/t5/WD-TV-Live-Hub-Ideas/Ditch-the-Black-Box/idi-p/155678
the only way to ditch the black box (which is firmware controlled) is to remove the focus…
example: http://community.wdc.com/t5/WD-TV-Live-Hub-Themes/New-Mochi-Alaska-Icon-Menu/m-p/246346#M3762
all icons are transparent, but there is no focused icon.