System "prefer-light" setting should override sushi's dark appearance
This is a follow-up to #4 (closed) now that GNOME has a dark/light colour scheme preference available (implemented in libadwaita and libhandy). The actual preference is in GSettings org.gnome.desktop.interface color-scheme
or the Portal Settings interface org.freedesktop.appearance color-scheme
.
This preference is a three-way switch, with the values being default/no preference (application developer picks dark or light mode based on the application's purpose), and then "prefer light" and "prefer dark" settings which indicate a user preference that should override the application default.
I'd expect sushi to remain dark by default, but if the prefer light preference is configured then it should use the light theme instead.