I've put together some genre backgrounds for the SNES. You can see a few examples above.
I was fairly critical in trying to find the best art I could and went with nostalgia as much as possible, some boxart, some official and some fanmade.
Put these in 'Media\Super Nintendo Entertainment System\Images\Genre\Backgrounds' in your Hyperspin folder.
These go with my SNES genre fix with xmls and images from @SupraKarma 's Ultimate SNES 2.0 pack. (linked below)
I'll include the xmls with this upload for convenience but head here for more details.
The sports category backgrounds and all the wheels are from @SupraKarma's pack but I've included them here for convenience with permission.
There are a few multiples included, (driving1.png, driving2.png etc.) Just remove the number to use an alternate background.
I've included the Wheel Border image in case you want to do any of your own.