One of the mouse gestures caused KDE to zoom in and then hide the mouse pointer. I can't figure out which gesture cause the zoom in or how to get the desktop back to normal. Ttihe mouse pointer seems to be there, but most of the time it is invisible and thus useless. Other times it is just mostly transparent and visible, though hard to spot.

How do I umzoom from the KDE desktop and which gesture got it zoomed in the first place?