Add decorations to Setting

winit/src/application.rs

@@ -105,6 +105,7 @@ pub trait Application: Sized {
                 height: f64::from(height),
             })
             .with_resizable(settings.window.resizable)
+            .with_decorations(settings.window.decorations)
             .build(&event_loop)
             .expect("Open window");
 

winit/src/settings.rs

@@ -17,6 +17,9 @@ pub struct Window {
 
     /// Whether the window should be resizable or not.
     pub resizable: bool,
+
+    /// Whether the window should have a border, a title bar, etc.
+    pub decorations: bool,
 }
 
 impl Default for Window {
@@ -24,6 +27,7 @@ impl Default for Window {
         Window {
             size: (1024, 768),
             resizable: true,
+            decorations: true,
         }
     }
 }