This happens with clean installation.
1. Go to Explorer panel settings > Colors
2. Check 'Use file specified background color'
3. Choose e.g. File and Foldet state colors > Files > Selected (bk. is white, text is red)
4. Uncheck 'Use default background color'
5. Press [Invert] (sample shows bk. red and text white)
6. Press [OK]. You'll see that bk. color is now red, but text color is black instead of white