Gova
Theming

Switching themes at runtime

Change the active theme from an event handler.

func UseSetTheme(s *Scope) func(*Theme)

UseSetTheme returns a function that replaces the currently active theme. Call it from any event handler; the change is applied on the UI goroutine and every semantic color resolves against the new palette on the next render.

func (v Settings) Body(s *gova.Scope) gova.View {
    setTheme := gova.UseSetTheme(s)
 
    return gova.VStack(
        gova.Button("Light", func() { setTheme(gova.LightTheme()) }),
        gova.Button("Dark", func() { setTheme(gova.DarkTheme()) }),
        gova.Button("System", func() { setTheme(gova.SystemTheme()) }),
    ).Spacing(gova.SpaceSM)
}

Initial theme

To set the theme at startup pass it through AppConfig.Theme. Run uses the Fyne default theme if you leave it nil.

gova.RunWithConfig(gova.AppConfig{
    Title: "My App",
    Theme: gova.DarkTheme(),
}, App)

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