diff --git a/crates/egui/src/widgets/mod.rs b/crates/egui/src/widgets/mod.rs
index 7c1c1287fea2..8dbc8454f1de 100644
--- a/crates/egui/src/widgets/mod.rs
+++ b/crates/egui/src/widgets/mod.rs
@@ -4,8 +4,6 @@
 //! * `ui.add(Label::new("Text").text_color(color::red));`
 //! * `if ui.add(Button::new("Click me")).clicked() { … }`
 
-use theme_switch::ThemeSwitch;
-
 use crate::*;
 
 mod button;
@@ -43,6 +41,7 @@ pub use self::{
     slider::{Slider, SliderOrientation},
     spinner::Spinner,
     text_edit::{TextBuffer, TextEdit},
+    theme_switch::ThemeSwitch,
 };
 
 // ----------------------------------------------------------------------------
diff --git a/crates/egui_demo_lib/src/demo/widget_gallery.rs b/crates/egui_demo_lib/src/demo/widget_gallery.rs
index 2f59c7caee02..1626488ad9b5 100644
--- a/crates/egui_demo_lib/src/demo/widget_gallery.rs
+++ b/crates/egui_demo_lib/src/demo/widget_gallery.rs
@@ -1,3 +1,5 @@
+use egui::{ThemePreference, ThemeSwitch};
+
 #[derive(Debug, PartialEq)]
 #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
 enum Enum {
@@ -18,6 +20,7 @@ pub struct WidgetGallery {
     string: String,
     color: egui::Color32,
     animate_progress_bar: bool,
+    theme: ThemePreference,
 
     #[cfg(feature = "chrono")]
     #[cfg_attr(feature = "serde", serde(skip))]
@@ -36,6 +39,7 @@ impl Default for WidgetGallery {
             string: Default::default(),
             color: egui::Color32::LIGHT_BLUE.linear_multiply(0.5),
             animate_progress_bar: false,
+            theme: ThemePreference::System,
             #[cfg(feature = "chrono")]
             date: None,
         }
@@ -119,6 +123,7 @@ impl WidgetGallery {
             animate_progress_bar,
             #[cfg(feature = "chrono")]
             date,
+            theme,
         } = self;
 
         ui.add(doc_link_label("Label", "label"));
@@ -248,6 +253,10 @@ impl WidgetGallery {
         });
         ui.end_row();
 
+        ui.add(doc_link_label("ThemeSwitch", "ThemeSwitch"));
+        ui.add(ThemeSwitch::new(theme));
+        ui.end_row();
+
         ui.add(doc_link_label_with_crate("egui_plot", "Plot", "plot"));
         example_plot(ui);
         ui.end_row();