KitchenAid had (has? I can't find it in stock anywhere) one that has a lit glass window that you could see the interior with. The KDTM384ESS but it retailed at like $1,600. Similar models probably exist but you're gonna want to look for a 'window' rather than a fully transparent door. Grime and the seal eventually going bad I think would make most companies avoid such a thing.
KitchenAid had (has? I can't find it in stock anywhere) one that has a lit glass window that you could see the interior with. The KDTM384ESS but it retailed at like $1,600. Similar models probably exist but you're gonna want to look for a 'window' rather than a fully transparent door. Grime and the seal eventually going bad I think would make most companies avoid such a thing.