SUMMARY I installed the Flatpak package and the hamburger icon in the top left corner is missing. I'm using Ubuntu with Gnome.
Just that icon? Or are other icons missing too?
Created attachment 125800 [details] Screenshot This is how it looks
Looks like it's using Adwaita icons, not Breeze icons. Seems like it could be a packaging issue.
Then again, if you're on GNOME, using Adwaita icons is actually intentional and desirable (assuming you're using Adwaita as your icon theme). Maybe the name of the icon we're using doesn't match up with the name used by Adwaita? Either way this is a Kirigami issue not a KItinerary issue.