Avast 4.7- Can't Load 3prty Skins

Besides the few bytes that we can ‘save’ from HDD, is there any performance issue related to these two forms of skins?

I must say I don’t know much about the skins…
I think it’s just that avast! needs the unpacked ones, there are packed versions on the download page and this tool makes it possible to convert between those two - nothing spectacular.