diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2586d129..50d6c18e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ And please only add new entries to the top of this list, right below the `# Unre
 - On Web, fix some `Window` methods using incorrect HTML attributes instead of CSS properties.
 - On Web, fix some `WindowBuilder` methods doing nothing.
 - On Web, implement `Window::focus_window()`.
+- On Web, remove unnecessary `Window::is_dark_mode()`, which was replaced with `Window::theme()`.
 
 # 0.29.0-beta.0
 
diff --git a/src/platform/web.rs b/src/platform/web.rs
index b353be82..d1dd7967 100644
--- a/src/platform/web.rs
+++ b/src/platform/web.rs
@@ -38,9 +38,6 @@ use web_sys::HtmlCanvasElement;
 pub trait WindowExtWebSys {
     /// Only returns the canvas if called from inside the window.
     fn canvas(&self) -> Option<HtmlCanvasElement>;
-
-    /// Whether the browser reports the preferred color scheme to be "dark".
-    fn is_dark_mode(&self) -> bool;
 }
 
 pub trait WindowBuilderExtWebSys {
diff --git a/src/platform_impl/web/web_sys/mod.rs b/src/platform_impl/web/web_sys/mod.rs
index 16720d76..06526975 100644
--- a/src/platform_impl/web/web_sys/mod.rs
+++ b/src/platform_impl/web/web_sys/mod.rs
@@ -55,12 +55,6 @@ impl WindowExtWebSys for Window {
     fn canvas(&self) -> Option<HtmlCanvasElement> {
         self.window.canvas()
     }
-
-    fn is_dark_mode(&self) -> bool {
-        self.window
-            .inner
-            .queue(|inner| is_dark_mode(&inner.window).unwrap_or(false))
-    }
 }
 
 pub fn scale_factor(window: &web_sys::Window) -> f64 {