Program icons as X?

Ca
2

My icons on my laptop desktop don't have these normal blue arrows in the lower left corner, but a slanted X or 2 people. Why is that and how can I change it?

Su

Accidentally shared the desktop? That sounds like the share symbol.

Also times right mouse button and update. If the crosses are still there, you can delete the icon cache.

Ca

Ah, I updated times and they are normal.