The Spotify logo is tilted. Askew. It took me entirely too long to know this for sure. For at least three years, I’ve been tapping and clicking the app icon and watching the logo appear as the service loads. Looking at the lime-green circle with its black, curved lines, it just seemed a little off-kilter. But to my eyes, it also isn’t tilted enough to seem intentional. Surely this wasn’t a mistake made by Spotify’s designers—I figured—or maybe it was just an optical illusion.