I just installed an Evernote client called Tusk via their .deb file, because the version in the official Ubuntu software repository will not play nicely when connected to my VPN. This new installation works fine with the VPN but the app icon is now simply a gear. I would like to change this but don't know how. Help would be greatly appreciated.
Create a .desktop file in ~/.local/share/applications/ , perhaps tusk.desktop, with
nano ~/.local/share/applications/tusk.desktop
In that file, add these lines
Save the file, and there's your Tusk desktop launcher.
Probably related to this bug reported by Linux Mint user and confirmed by Ubuntu 18.04 users:
The accepted solution there: