diff --git a/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java b/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
index 04017b3a42..264b88ce61 100644
--- a/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
+++ b/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
@@ -104,16 +104,7 @@ public class ClientUI
 	private static final String CONFIG_CLIENT_MAXIMIZED = "clientMaximized";
 	private static final int CLIENT_WELL_HIDDEN_MARGIN = 160;
 	private static final int CLIENT_WELL_HIDDEN_MARGIN_TOP = 10;
-	public static final BufferedImage ICON;
-	private static final BufferedImage SIDEBAR_OPEN;
-	private static final BufferedImage SIDEBAR_CLOSE;
-
-	static
-	{
-		ICON = ImageUtil.getResourceStreamFromClass(ClientUI.class, "/runelite.png");
-		SIDEBAR_OPEN = ImageUtil.getResourceStreamFromClass(ClientUI.class, "open.png");
-		SIDEBAR_CLOSE = ImageUtil.flipImage(SIDEBAR_OPEN, true, false);
-	}
+	public static final BufferedImage ICON = ImageUtil.getResourceStreamFromClass(ClientUI.class, "/runelite.png");
 
 	@Getter
 	private TrayIcon trayIcon;
@@ -127,6 +118,9 @@ public class ClientUI
 	private final Provider<ClientThread> clientThreadProvider;
 	private final CardLayout cardLayout = new CardLayout();
 	private final Rectangle sidebarButtonPosition = new Rectangle();
+	private boolean withTitleBar;
+	private BufferedImage sidebarOpenIcon;
+	private BufferedImage sidebarClosedIcon;
 	private ContainableFrame frame;
 	private JPanel navContainer;
 	private PluginPanel pluginPanel;
@@ -179,8 +173,7 @@ public class ClientUI
 		{
 			final NavigationButton navigationButton = event.getButton();
 			final PluginPanel pluginPanel = navigationButton.getPanel();
-			final boolean inTitle = !event.getButton().isTab() &&
-				(config.enableCustomChrome() || SwingUtil.isCustomTitlePanePresent(frame));
+			final boolean inTitle = !event.getButton().isTab() && withTitleBar;
 			final int iconSize = 16;
 
 			if (pluginPanel != null)
@@ -382,7 +375,7 @@ public class ClientUI
 			mouseManager.registerMouseListener(mouseListener);
 
 			// Decorate window with custom chrome and titlebar if needed
-			final boolean withTitleBar = config.enableCustomChrome();
+			withTitleBar = config.enableCustomChrome();
 			frame.setUndecorated(withTitleBar);
 
 			if (withTitleBar)
@@ -436,10 +429,14 @@ public class ClientUI
 			updateFrameConfig(true);
 
 			// Create hide sidebar button
+
+			sidebarOpenIcon = ImageUtil.getResourceStreamFromClass(ClientUI.class, withTitleBar ? "open.png" : "open_rs.png");
+			sidebarClosedIcon = ImageUtil.flipImage(sidebarOpenIcon, true, false);
+
 			sidebarNavigationButton = NavigationButton
 				.builder()
 				.priority(100)
-				.icon(SIDEBAR_CLOSE)
+				.icon(sidebarClosedIcon)
 				.onClick(this::toggleSidebar)
 				.build();
 
@@ -618,21 +615,21 @@ public class ClientUI
 	 */
 	public void paintOverlays(final Graphics2D graphics)
 	{
-		if (!(client instanceof Client) || config.enableCustomChrome())
+		if (!(client instanceof Client) || withTitleBar)
 		{
 			return;
 		}
 
-		final Client client = (Client)this.client;
-		final int x = client.getRealDimensions().width - SIDEBAR_OPEN.getWidth() - 5;
+		final Client client = (Client) this.client;
+		final int x = client.getRealDimensions().width - sidebarOpenIcon.getWidth() - 5;
 
 		// Offset sidebar button if resizable mode logout is visible
 		final Widget logoutButton = client.getWidget(WidgetInfo.RESIZABLE_VIEWPORT_BOTTOM_LINE_LOGOUT_BUTTON);
 		final int y = logoutButton != null && !logoutButton.isHidden() && logoutButton.getParent() != null
-			? logoutButton.getHeight() + logoutButton.getRelativeY() + 5
+			? logoutButton.getHeight() + logoutButton.getRelativeY()
 			: 5;
 
-		final BufferedImage image = sidebarOpen ? SIDEBAR_OPEN : SIDEBAR_CLOSE;
+		final BufferedImage image = sidebarOpen ? sidebarOpenIcon : sidebarClosedIcon;
 		graphics.drawImage(image, x, y, null);
 
 		// Update button dimensions
@@ -663,7 +660,7 @@ public class ClientUI
 
 		if (isSidebarOpen)
 		{
-			sidebarNavigationJButton.setIcon(new ImageIcon(SIDEBAR_OPEN));
+			sidebarNavigationJButton.setIcon(new ImageIcon(sidebarOpenIcon));
 			sidebarNavigationJButton.setToolTipText("Open SideBar");
 
 			contract();
@@ -673,7 +670,7 @@ public class ClientUI
 		}
 		else
 		{
-			sidebarNavigationJButton.setIcon(new ImageIcon(SIDEBAR_CLOSE));
+			sidebarNavigationJButton.setIcon(new ImageIcon(sidebarClosedIcon));
 			sidebarNavigationJButton.setToolTipText("Close SideBar");
 
 			// Try to restore last panel
@@ -807,7 +804,7 @@ public class ClientUI
 		}
 
 		frame.setExpandResizeType(config.automaticResizeType());
-		frame.setContainedInScreen(config.containInScreen() && config.enableCustomChrome());
+		frame.setContainedInScreen(config.containInScreen() && withTitleBar);
 
 		if (!config.rememberScreenBounds())
 		{
diff --git a/runelite-client/src/main/java/net/runelite/client/util/SwingUtil.java b/runelite-client/src/main/java/net/runelite/client/util/SwingUtil.java
index 7caa72308a..39fc738f1f 100644
--- a/runelite-client/src/main/java/net/runelite/client/util/SwingUtil.java
+++ b/runelite-client/src/main/java/net/runelite/client/util/SwingUtil.java
@@ -31,7 +31,6 @@ import java.awt.Frame;
 import java.awt.Image;
 import java.awt.SystemTray;
 import java.awt.TrayIcon;
-import java.awt.Window;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.awt.event.WindowAdapter;
@@ -59,7 +58,6 @@ import net.runelite.client.ui.ColorScheme;
 import net.runelite.client.ui.NavigationButton;
 import net.runelite.client.ui.components.CustomScrollBarUI;
 import org.pushingpixels.substance.internal.SubstanceSynapse;
-import org.pushingpixels.substance.internal.utils.SubstanceCoreUtilities;
 
 /**
  * Various Swing utilities.
@@ -279,15 +277,4 @@ public class SwingUtil
 		navigationButton.setOnSelect(button::doClick);
 		return button;
 	}
-
-	/**
-	 * Checks if custom substance title pane is present.
-	 *
-	 * @param frame the parent frame
-	 * @return true if title pane is present
-	 */
-	public static boolean isCustomTitlePanePresent(final Window frame)
-	{
-		return SubstanceCoreUtilities.getTitlePaneComponent(frame) != null;
-	}
 }
diff --git a/runelite-client/src/main/resources/net/runelite/client/ui/open_rs.png b/runelite-client/src/main/resources/net/runelite/client/ui/open_rs.png
new file mode 100644
index 0000000000..e0cb3df043
Binary files /dev/null and b/runelite-client/src/main/resources/net/runelite/client/ui/open_rs.png differ