diff --git a/Userland/Libraries/LibGUI/Frame.cpp b/Userland/Libraries/LibGUI/Frame.cpp
index eb95debf74..d82bf4d7fe 100644
--- a/Userland/Libraries/LibGUI/Frame.cpp
+++ b/Userland/Libraries/LibGUI/Frame.cpp
@@ -28,7 +28,8 @@ Frame::Frame()
         { Gfx::FrameShape::NoFrame, "NoFrame" },
         { Gfx::FrameShape::Box, "Box" },
         { Gfx::FrameShape::Container, "Container" },
-        { Gfx::FrameShape::Panel, "Panel" });
+        { Gfx::FrameShape::Panel, "Panel" },
+        { Gfx::FrameShape::Window, "Window" });
 }
 
 Frame::~Frame()
diff --git a/Userland/Libraries/LibGfx/ClassicStylePainter.cpp b/Userland/Libraries/LibGfx/ClassicStylePainter.cpp
index 738b39b6f1..a6ec1c3c35 100644
--- a/Userland/Libraries/LibGfx/ClassicStylePainter.cpp
+++ b/Userland/Libraries/LibGfx/ClassicStylePainter.cpp
@@ -219,6 +219,11 @@ void ClassicStylePainter::paint_frame(Painter& painter, IntRect const& rect, Pal
     if (shape == Gfx::FrameShape::NoFrame)
         return;
 
+    if (shape == FrameShape::Window) {
+        StylePainter::paint_window_frame(painter, rect, palette);
+        return;
+    }
+
     Color top_left_color;
     Color bottom_right_color;
     Color dark_shade = palette.threed_shadow1();
diff --git a/Userland/Libraries/LibGfx/StylePainter.h b/Userland/Libraries/LibGfx/StylePainter.h
index 7cbec2f27b..c3f876b89f 100644
--- a/Userland/Libraries/LibGfx/StylePainter.h
+++ b/Userland/Libraries/LibGfx/StylePainter.h
@@ -28,6 +28,7 @@ enum class FrameShape {
     Box,
     Container,
     Panel,
+    Window,
 };
 
 // FIXME: should this be in its own header?