In Application Manager visually mark already installed software

Build 73564
One cannot distinguish if software is already installed from the Available list, one has to change to the Installed list.
Hiding installed software is not useful for re-installations. Therefore the suggested method would be to visually change installed software's list entries, maybe change text to grey or an additional column (for accessibility)? The same method could later be used with a different highlighting/column entry for available updates of the software.