Set dark and light theme

[VideoCarp]

How can I toggle dark theme similarly to the egui demo and in the repo's README.
I've looked at a previous discussion, but it didn't help. I've looked at the docs but I couldn't understand them very well.

How do I change the theme to dark mode? I'm not asking about how to make a toggle button. I am asking how I can toggle the dark mode.

[willser]

use eframe::egui::{Style, Visuals};

let native_options = eframe::NativeOptions::default();
eframe::run_native(
    "test",
    native_options,
    Box::new(|creation_context| {
        let style = Style {
            visuals: Visuals::dark(),
            ..Style::default()
        };
        creation_context.egui_ctx.set_style(style);
        Box::new(<ur struct>)
    }),
);

Or

ui.style_mut().visuals = Visuals::dark();

[floppyhammer]

If you want to toggle theme globally

// ctx: egui::Context
ctx.set_visuals(Visuals::dark());

[landaire]

The previous answers did not work for me. As of Nov 2024 this variation of willser's answer works:

eframe::run_native(
    "test",
    native_options,
    Box::new(|creation_context| {
        creation_context.egui_ctx.set_theme(egui::Theme::Dark);

        Box::new(<ur struct>)
    }),
);