Léa was apparently a handful this morning.
She kept flying to places she shouldn't go, which meant the Boy had to keep running after her.
I think he was particularly annoyed because he was trying to process some pictures at the same time.
Eventually, Léa remained close to him, but she also decided to walk all over his laptop and created some funky art (using one of the pictures the Boy was processing as the base).
He didn't know exactly what she did, but it did take a few clicks of the "undo" button to get back to what he had originally.