When a window is minimized it's icon and name are greyed out in the taskbar.
This is extremely unergonomic - especially for people with bad eyes.
I use to have two rows of windows in my taskbar and always have a hard time to find a minimized window in that grey mass.

It is also misleading from the aspect of user interface.
Usually a greyed out element marks an element as inactive or inappropriate (e.g. you cannot copy text when no text is marked).

The Air and Air for notebooks theme are also affected by this bus as the Oxygen. At oxygen one at least can read the text.



Reproducible: Always