Hi,
i am using with a lot of fun insync with gnome 3.18 (manjaro distro). Everything is perfect. There is only a minor aesthetic problem: when a do right-click on insync indicator (situated in bottom notification bar) the fonts of the contextual menu is really huge.
@rrkradio: Yes, that is what I meant. Insync is started automatically on login, and that is when the issue appears. When Insync is restarted the issue is resolved. Apologies for the confusion.
@Vincenzo_Caselli: What are the output of the commands gsettings get org.gnome.desktop.interface scaling-factor and gsettings get org.gnome.desktop.interface text-scaling-factor?