The official Twitter account for the Nintendo Switch game Arms has posted a picture showing a candy-themed stage which, as pointed out by NeoGAF user Jonneh3003, is something that has been rumoured in the datamining community for a while, alongside a new candy-themed fighter.
The comments were mostly talking about when we might see this character revealed, and what the new stage will be like, but there were also others with slightly different priorities, such as user wild wild rice who noticed that the coffee in the picture is black coffee, saying: "Arms fighters drink their coffee black, good people."
As another interesting aside, it's also worth noting that the candy stage looks a lot like Mario Kart 8's Sweet Sweet Canyon in terms of design. Regardless, what do you want to see from this new stage/character in Arms?