[TYPO3-dev] 4.2.2 uses "old" icons in filelist

[Christopher]

Hi guys,

I got this behaviour in several installations I updated to 4.2.2:
In the module file > fiellist the normal folders are no longer grey as they 
were before, but they are yellow and look like those folders from Windows 
3.1 or something.

Does someone experience the same?

And much more important: Does someone know how to get back the "normal" , 
modern picture?

Greetings

Christopher