diff --git a/examples/example1/main.d b/examples/example1/main.d
index f2295107..89bf572b 100644
--- a/examples/example1/main.d
+++ b/examples/example1/main.d
@@ -54,7 +54,7 @@ extern (C) int UIAppMain(string[] args) {
     hlayout.addChild((new TextWidget()).text("in horizontal layout"));
 	hlayout.addChild((new ImageWidget()).drawableId("exit").padding(Rect(5,5,5,5)).alignment(Align.Center));
 	//hlayout.addChild((new Button()).text(">>")); //.textColor(0x40FF4000)
-    //hlayout.backgroundColor = 0x8080C0;
+    hlayout.backgroundColor = 0x8080C0;
     layout.addChild(hlayout);
 
     LinearLayout vlayout = new VerticalLayout();
diff --git a/src/dlangui/platforms/common/platform.d b/src/dlangui/platforms/common/platform.d
index 82d15d61..13966928 100644
--- a/src/dlangui/platforms/common/platform.d
+++ b/src/dlangui/platforms/common/platform.d
@@ -9,7 +9,10 @@ private import dlangui.graphics.gldrawbuf;
 class Window {
     protected int _dx;
     protected int _dy;
+	protected uint _backgroundColor;
     protected Widget _mainWidget;
+	@property uint backgroundColor() { return _backgroundColor; }
+	@property void backgroundColor(uint color) { _backgroundColor = color; }
     @property int width() { return _dx; }
     @property int height() { return _dy; }
     @property Widget mainWidget() { return _mainWidget; }
@@ -36,6 +39,10 @@ class Window {
 
     long lastDrawTs;
 
+	this() {
+		_backgroundColor = 0xFFFFFF;
+	}
+
     private void animate(Widget root, long interval) {
         if (root.visibility != Visibility.Visible)
             return;
diff --git a/src/dlangui/platforms/windows/winapp.d b/src/dlangui/platforms/windows/winapp.d
index 495c8342..8a1f0db9 100644
--- a/src/dlangui/platforms/windows/winapp.d
+++ b/src/dlangui/platforms/windows/winapp.d
@@ -218,7 +218,11 @@ class Win32Window : Window {
             wglMakeCurrent(hdc, _hGLRC);
             glDisable(GL_DEPTH_TEST);
             glViewport(0, 0, _dx, _dy);
-            glClearColor(0.9f, 0.9f, 0.9f, 1.0f);
+			float a = 1.0f;
+			float r = ((_backgroundColor >> 16) & 255) / 255.0f;
+			float g = ((_backgroundColor >> 8) & 255) / 255.0f;
+			float b = ((_backgroundColor >> 0) & 255) / 255.0f;
+            glClearColor(r, g, b, a);
             glClear(GL_COLOR_BUFFER_BIT);
 
             GLDrawBuf buf = new GLDrawBuf(_dx, _dy, false);
@@ -296,7 +300,7 @@ class Win32Window : Window {
         scope(exit) EndPaint(_hwnd, &ps);
 
         Win32ColorDrawBuf buf = getDrawBuf();
-        buf.fill(0x808080);
+        buf.fill(_backgroundColor);
         onDraw(buf);
         buf.drawTo(hdc, 0, 0);
     }
@@ -318,10 +322,8 @@ class Win32Window : Window {
 	protected ButtonDetails _mbutton;
 	protected ButtonDetails _rbutton;
 
-
-
-    bool _mouseTracking;
-	bool onMouse(uint message, uint flags, short x, short y) {
+    private bool _mouseTracking;
+	private bool onMouse(uint message, uint flags, short x, short y) {
 		Log.d("Win32 Mouse Message ", message, " flags=", flags, " x=", x, " y=", y);
         MouseButton button = MouseButton.None;
         MouseAction action = MouseAction.ButtonDown;
@@ -437,7 +439,7 @@ class Win32Platform : Platform {
         wndclass.hInstance     = _hInstance;
         wndclass.hIcon         = LoadIcon(null, IDI_APPLICATION);
         wndclass.hCursor       = LoadCursor(null, IDC_ARROW);
-        wndclass.hbrBackground = null; //cast(HBRUSH)GetStockObject(WHITE_BRUSH);
+        wndclass.hbrBackground = cast(HBRUSH)GetStockObject(WHITE_BRUSH);
         wndclass.lpszMenuName  = null;
         wndclass.lpszClassName = toUTF16z(WIN_CLASS_NAME);
 
diff --git a/src/dlangui/widgets/styles.d b/src/dlangui/widgets/styles.d
index 278a36c6..f18b76f4 100644
--- a/src/dlangui/widgets/styles.d
+++ b/src/dlangui/widgets/styles.d
@@ -433,7 +433,7 @@ class Theme : Style {
 	this(string id) {
 		super(this, id);
 		_parentStyle = null;
-		_backgroundColor = 0xE0E0E0; // light gray
+		_backgroundColor = 0xFFFFFFFF; // transparent
 		_textColor = 0x000000; // black
 		_align = Align.TopLeft;
 		_fontSize = 24; // TODO: from settings or screen properties / DPI