This portal is not finished yet, I'm working on it, but it's not functional yet.

This is a work-in progress XDG-DESKTOP-PORTAL implementation for settings and style. The only purpose of this is a desktop-environment independent settings portal.

It does not and will not provide any other functionality. For that, please use an existing one like KDE or GTK.

KDE doesn't have a way of telling whether the user has dark mode enabled or not, every KDE app makes that based on the window color. FreeDesktopPortal has a standard for this.

[general]

First, setting has [general] colorScheme = true/false

if not, the KDE window color will be used to determine color mode.
I use the same condition as KDE, it should behave exactly the same.