So I want to get rid of these grey boxes that got added to everything in the overview. They are in the bar as shown in the image, they are in every text in the overview search as well.
For my taste it is disgustingly ugly. And I can't find where I can make it go back to normal.
I'm not a Gnome expert and are using the 'dash2dock' extension, but if I right click on rightmost 'show apps' icon, and select 'dash2dock settings, I can change opacity, bg color and such.
Not sure where else to change those settings, so apol's if this is not applicable in your case.