“Okay,” Leo said. “First, you click on an empty part of the desktop. Not on an icon. Just the background.”

The icons shrank .

“Leo,” she said softly. “You just fixed something I didn’t know how to complain about.”

“These… pictures. The little ones. They’re too big. I can’t fit anything on the screen. I want to make them smaller, but I’m afraid I’ll break something.”

“Right. So click there. Then hold down the Ctrl key on your keyboard. See it? Bottom left.”

“That’s it,” Leo said. “You can also right-click the desktop, go to View, and pick Small icons. But the Ctrl-scroll thing is faster.”

“If that’s what they’re called.”