diff --git a/eframe/CHANGELOG.md b/eframe/CHANGELOG.md
index b6c98de4..87011ed9 100644
--- a/eframe/CHANGELOG.md
+++ b/eframe/CHANGELOG.md
@@ -3,7 +3,6 @@ All notable changes to the `eframe` crate.
 
 
 ## Unreleased
-* `Frame` now provides `set_decorations` to set whether to show window decorations.
 
 
 ## 0.14.0 - 2021-08-24
diff --git a/egui_glium/src/backend.rs b/egui_glium/src/backend.rs
index 68878001..243c1825 100644
--- a/egui_glium/src/backend.rs
+++ b/egui_glium/src/backend.rs
@@ -202,7 +202,6 @@ pub fn run(mut app: Box<dyn epi::App>, native_options: epi::NativeOptions) {
             http: http.clone(),
             output: &mut app_output,
             repaint_signal: repaint_signal.clone(),
-            decorated: native_options.decorated,
         }
         .build();
         app.setup(ctx, &mut frame, storage.as_deref());
@@ -227,7 +226,6 @@ pub fn run(mut app: Box<dyn epi::App>, native_options: epi::NativeOptions) {
             http: http.clone(),
             output: &mut app_output,
             repaint_signal: repaint_signal.clone(),
-            decorated: native_options.decorated,
         }
         .build();
 
@@ -325,7 +323,6 @@ pub fn run(mut app: Box<dyn epi::App>, native_options: epi::NativeOptions) {
                 http: http.clone(),
                 output: &mut app_output,
                 repaint_signal: repaint_signal.clone(),
-                decorated: native_options.decorated,
             }
             .build();
             app.update(ctx, &mut frame);
@@ -349,13 +346,7 @@ pub fn run(mut app: Box<dyn epi::App>, native_options: epi::NativeOptions) {
             }
 
             {
-                let epi::backend::AppOutput {
-                    quit,
-                    window_size,
-                    decorated,
-                } = app_output;
-
-                display.gl_window().window().set_decorations(decorated);
+                let epi::backend::AppOutput { quit, window_size } = app_output;
 
                 if let Some(window_size) = window_size {
                     display.gl_window().window().set_inner_size(
diff --git a/egui_web/src/backend.rs b/egui_web/src/backend.rs
index ed036523..a9d30653 100644
--- a/egui_web/src/backend.rs
+++ b/egui_web/src/backend.rs
@@ -179,7 +179,6 @@ impl AppRunner {
                 http: runner.http.clone(),
                 output: &mut app_output,
                 repaint_signal: runner.needs_repaint.clone(),
-                decorated: false,
             }
             .build();
             runner.app.setup(
@@ -252,7 +251,6 @@ impl AppRunner {
             http: self.http.clone(),
             output: &mut app_output,
             repaint_signal: self.needs_repaint.clone(),
-            decorated: false,
         }
         .build();
 
@@ -268,7 +266,6 @@ impl AppRunner {
             let epi::backend::AppOutput {
                 quit: _,        // Can't quit a web page
                 window_size: _, // Can't resize a web page
-                decorated: _,   // Can't show decorations
             } = app_output;
         }
 
diff --git a/epi/src/lib.rs b/epi/src/lib.rs
index 51bf7f3a..7c718332 100644
--- a/epi/src/lib.rs
+++ b/epi/src/lib.rs
@@ -251,12 +251,6 @@ impl<'a> Frame<'a> {
         self.0.output.window_size = Some(size);
     }
 
-    /// Set whether to show window decorations (i.e. a frame around you app).
-    /// If false it will be difficult to move and resize the app.
-    pub fn set_decorations(&mut self, decorated: bool) {
-        self.0.output.decorated = decorated;
-    }
-
     /// If you need to request a repaint from another thread, clone this and send it to that other thread.
     pub fn repaint_signal(&self) -> std::sync::Arc<dyn RepaintSignal> {
         self.0.repaint_signal.clone()
@@ -492,8 +486,6 @@ pub mod backend {
         pub output: &'a mut AppOutput,
         /// If you need to request a repaint from another thread, clone this and send it to that other thread.
         pub repaint_signal: std::sync::Arc<dyn RepaintSignal>,
-        /// If the window has decorations
-        pub decorated: bool,
     }
 
     impl<'a> FrameBuilder<'a> {
@@ -512,8 +504,5 @@ pub mod backend {
 
         /// Set to some size to resize the outer window (e.g. glium window) to this size.
         pub window_size: Option<egui::Vec2>,
-
-        /// If the window has decorations
-        pub decorated: bool,
     }
 }