I suspect that for gimp and chromium you need to run those again, but swap authy for either "gimp" or "chromium":
sudo snap connect authy:gnome-3-28-1804 gnome-3-28-1804 sudo snap connect authy:gtk-3-themes gtk-common-themes:gtk-3-themes sudo snap connect authy:icon-themes gtk-common-themes:icon-themes sudo snap connect authy:sound-themes gtk-common-themes:sound-themes
I suspect that for gimp and chromium you need to run those again, but swap authy for either "gimp" or "chromium":
sudo snap connect authy:gnome- 3-28-1804 gnome-3-28-1804 themes: gtk-3-themes themes: icon-themes themes: sound-themes
sudo snap connect authy:gtk-3-themes gtk-common-
sudo snap connect authy:icon-themes gtk-common-
sudo snap connect authy:sound-themes gtk-common-