with edge-to-edge on Android 15, the app must draw its own background behind the status bar since the deprecated statusBarColor API no longer works. By ensuring the AppBarLayout has the proper background color and extends behind the status bar, the blue system background is no longer visible.

Author: mzorz

Simplenote/src/main/java/com/automattic/simplenote/PreferencesActivity.java

@@ -60,7 +60,8 @@ protected void onCreate(Bundle savedInstanceState) {
         }
 
         // Setup edge-to-edge display with proper WindowInsets handling
-        SystemBarUtils.setupEdgeToEdgeWithToolbar(
+        // Use auto-theming to properly handle status bar appearance based on theme
+        SystemBarUtils.setupEdgeToEdgeWithAutoTheming(
             this,
             findViewById(R.id.main_parent_view),
             toolbar,

Simplenote/src/main/res/layout/activity_preferences.xml

@@ -5,7 +5,8 @@
     android:id="@+id/main_parent_view"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    android:fitsSystemWindows="false">
 
     <include
         layout="@layout/toolbar">

Simplenote/src/main/res/layout/toolbar.xml

@@ -5,6 +5,8 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_height="wrap_content"
     android:layout_width="match_parent"
+    android:background="?attr/toolbarColor"
+    android:fitsSystemWindows="false"
     android:theme="@style/ToolbarTheme.AppBarOverlay">
 
     <androidx.appcompat.widget.Toolbar