TYPO3 Core

Scenario:
I'm in a folder in the file list and I want to upload a file. I click on "Upload Files", the files area gets an overlay for Drag & Drop of files and at the same time a popup/window opens to select the files on the device.
Now I've changed my mind and don't want to upload any more files but want to select a file in the files area. I click Cancel on the popup, but the Drag & Drop overlay remains and I can't select any files in the files area.

Now I have several possibilities to end the overlay:
- by clicking on the cross in the upper right of the overlay
- by pressing the "ESC" button on the keyboard
- by clicking on the current folder in the file list to load the view again

The first option (clicking the cross) is the most obvious option, but the button is hard to recognize.