it's time for my first suggestion comment in over a year *clears throat*
support.
i agree with you, it is pretty iconic, but it's about time it got changed. the thumbnail really just gives off this 2.0-era vibe (which isn't bad, i miss 2.0 lol) but with the forthcoming ui upgrades, it does look a bit out of date. the least they can do is to upscale the image so it doesn't look so… grainy.