icon: update app icon
Given that this cycle we merged the full rewrite done by Ruxandra during GSoC, we've removed AppMenu, added a new and modern theme for the game it would be great if we could also get a new HiResolution AppIcon in context of the ongoing AppIcon Redesign. That way we would have an old game looking as a completely new game :)
GNOME 3.32 redesign of app icons. See Initiatives#2 (closed) for more info.