diff --git a/CreamInstaller/Components/CustomTreeView.cs b/CreamInstaller/Components/CustomTreeView.cs
index 2ec2971..d37490a 100644
--- a/CreamInstaller/Components/CustomTreeView.cs
+++ b/CreamInstaller/Components/CustomTreeView.cs
@@ -132,6 +132,33 @@ internal sealed class CustomTreeView : TreeView
             int cbX = node.Bounds.Left - cbSize.Width - 2;
             int cbY = node.Bounds.Top + node.Bounds.Height / 2 - cbSize.Height / 2;
             ThemeManager.DrawDarkCheckBox(graphics, new Point(cbX, cbY), cbSize, node.Checked, Enabled);
+
+            // Expander glyph (expand/collapse) – the system skips this when DrawDefault=false
+            if (node.Nodes.Count > 0)
+            {
+                int indent = Indent;
+                int level = node.Level;
+                int glyphSize = 13;
+                int glyphX = level * indent + (indent - glyphSize) / 2 + (ShowRootLines ? 0 : -indent);
+                int glyphY = node.Bounds.Top + node.Bounds.Height / 2 - glyphSize / 2;
+                Rectangle glyphRect = new(glyphX, glyphY, glyphSize, glyphSize);
+                Color glyphBorder = Color.FromArgb(0x6B, 0x6B, 0x6B);
+                Color glyphBack = Color.FromArgb(0x2D, 0x2D, 0x2D);
+                Color glyphFore = Color.FromArgb(0xD4, 0xD4, 0xD4);
+                using (SolidBrush backFill = new(glyphBack))
+                    graphics.FillRectangle(backFill, glyphRect);
+                using (Pen borderPen = new(glyphBorder))
+                    graphics.DrawRectangle(borderPen, glyphRect);
+                int mid = glyphY + glyphSize / 2;
+                int left = glyphX + 3;
+                int right = glyphX + glyphSize - 3;
+                using (Pen linePen = new(glyphFore))
+                {
+                    graphics.DrawLine(linePen, left, mid, right, mid); // horizontal minus
+                    if (!node.IsExpanded)
+                        graphics.DrawLine(linePen, glyphX + glyphSize / 2, glyphY + 3, glyphX + glyphSize / 2, glyphY + glyphSize - 3); // vertical plus
+                }
+            }
         }
         else
         {
@@ -209,7 +236,7 @@ internal sealed class CustomTreeView : TreeView
                 bounds = bounds with { X = bounds.X + bounds.Width, Width = size.Width };
                 selectionBounds = new(selectionBounds.Location, selectionBounds.Size + bounds.Size with { Height = 0 });
                 Rectangle checkBoxBounds = bounds;
-                graphics.FillRectangle(backBrush, bounds);
+                graphics.FillRectangle(brush, bounds);
                 point = new(bounds.Left, bounds.Top + bounds.Height / 2 - size.Height / 2 - 1);
                 if (dark)
                     ThemeManager.DrawDarkCheckBox(graphics, point, size, selection.UseProxy, Enabled);
@@ -222,7 +249,7 @@ internal sealed class CustomTreeView : TreeView
                 bounds = bounds with { X = bounds.X + bounds.Width, Width = size.Width + left };
                 selectionBounds = new(selectionBounds.Location, selectionBounds.Size + bounds.Size with { Height = 0 });
                 checkBoxBounds = new(checkBoxBounds.Location, checkBoxBounds.Size + bounds.Size with { Height = 0 });
-                graphics.FillRectangle(backBrush, bounds);
+                graphics.FillRectangle(brush, bounds);
                 point = new(bounds.Location.X - 1 + left, bounds.Location.Y + 1);
                 TextRenderer.DrawText(graphics, text, font, point,
                     Enabled ? ThemeManager.CustomTreeViewProxyColor : ThemeManager.CustomTreeViewDisabledProxyColor,