Light grey lower left corner function
I have an iPad Air 4 and somehow I have activated a function in the lower left hand corner. The screen changed to light grey triangle in that area. What is it and how can I turn it off?
I was going to say that it looks like it is from your Wallpaper. I do not use the default wallpaper, so mine does not change when I update my devices. You can go in and select any wallpaper you wish.