My personal preference is 2.07.17 (and Aeonish Hub won’t display properly with any higher firmware … because of no Transparent PNG support)
It’s definately tied in with how images are displayed and cached depending on firmware… example
The picture of “Catwoman” is a Transparent PNG, renamed to JPG and it displays.
BUT … the image never gets cached in the .wd_tv folder, so it’s displaying it “locally” (where-as other firmwares were caching the images and displaying from cache)
P.S. The Screenshot was taken on the 2014 WDTV Media Player FW1.027.17
http://community.wd.com/t5/WD-TV-Themes/Transparent-PNG-s-they-re-back/td-p/846148