This a Gnome Shell extension, which shows titles of all window thumbnails in the Overview.
Please read this post(Gnome 3.26: How to get the window titles in the activities view back?) and this comment below Gnome Bugzilla - Window picker layout improvements.
This extension has a Settings now, which makes it more powerful:
- Remove the fade time when leave a window
- Find a way to distinguish the selected window and the others. 1. Maybe I can find a way to increase the light of the highlight around the selected window. 2. Or I can find a way to reverse the color of the title and it's background of the highlight around the selected window. (Gnome-shell has this feature now by larging thumbnail when the cursor hovers over it.)
- Be compatible with GNOME Shell v3.36
- Wine-based application's window has no close button. Remove 'if (this._windowCanClose())' can fix this issue, but I don't know if it's a good idea. I see that Wine application has close button now.
- Add Preferences for this extension for setting show or hide app's icon, changing title's position