GTK Applications doesn't scale on plasma desktop or i3 window manager
Steps to reproduce
- Install Gnome calculator application on Kubuntu
- Increase scale of display to 2 using the settings display and reboot
- Start calculator app.
Current behavior
You'll see the toolbar images not getting scaled. Sample output is given below
Expected outcome
We expect the toolbar icons to scale according to the display scale set
Version information
Kubuntu 18.04 with plasma desktop GTK 3.22
Additional information
Same can be seen with i3 window manager as well