always redraw titlebar

src/platform_impl/windows/dark_mode.rs

@@ -119,11 +119,7 @@ fn refresh_immersive_color_policy_state() {
 
 /// Attempt to set a theme on a window, if necessary.
 /// Returns the theme that was picked
-pub fn try_window_theme(
-  hwnd: HWND,
-  preferred_theme: Option<Theme>,
-  redraw_title_bar: bool,
-) -> Theme {
+pub fn try_window_theme(hwnd: HWND, preferred_theme: Option<Theme>) -> Theme {
   if *DARK_MODE_SUPPORTED {
     let is_dark_mode = match preferred_theme {
       Some(theme) => theme == Theme::Dark,
@@ -135,7 +131,7 @@ pub fn try_window_theme(
       false => Theme::Light,
     };
 
-    refresh_titlebar_theme_color(hwnd, is_dark_mode, redraw_title_bar);
+    refresh_titlebar_theme_color(hwnd, is_dark_mode);
 
     theme
   } else {
@@ -165,7 +161,7 @@ pub fn allow_dark_mode_for_window(hwnd: HWND, is_dark_mode: bool) {
   }
 }
 
-fn refresh_titlebar_theme_color(hwnd: HWND, is_dark_mode: bool, redraw_title_bar: bool) {
+fn refresh_titlebar_theme_color(hwnd: HWND, is_dark_mode: bool) {
   if let Some(ver) = *WIN10_BUILD_VERSION {
     if ver < 17763 {
       let mut is_dark_mode_bigbool: i32 = is_dark_mode.into();
@@ -192,10 +188,8 @@ fn refresh_titlebar_theme_color(hwnd: HWND, is_dark_mode: bool, redraw_title_bar
           std::mem::size_of::<BOOL>() as u32,
         );
       }
-      if redraw_title_bar {
-        unsafe { DefWindowProcW(hwnd, WM_NCACTIVATE, None, None) };
-        unsafe { DefWindowProcW(hwnd, WM_NCACTIVATE, WPARAM(true.into()), None) };
-      }
+      unsafe { DefWindowProcW(hwnd, WM_NCACTIVATE, None, None) };
+      unsafe { DefWindowProcW(hwnd, WM_NCACTIVATE, WPARAM(true.into()), None) };
     }
   }
 }

src/platform_impl/windows/event_loop.rs

@@ -2078,7 +2078,6 @@ unsafe fn public_window_callback_inner<T: 'static>(
       let new_theme = try_window_theme(
         window,
         preferred_theme.or(*subclass_input.event_loop_preferred_theme.lock()),
-        false,
       );
       let mut window_state = subclass_input.window_state.lock();
 

src/platform_impl/windows/window.rs

@@ -1155,7 +1155,6 @@ unsafe fn init<T: 'static>(
     attributes
       .preferred_theme
       .or(*event_loop.preferred_theme.lock()),
-    false,
   );
 
   let window_state = {