ToolBar:

- swap margins if orientation changes when floating
- include toolbar margin in grip position calculation

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatToolBarBorder.java

@@ -63,12 +63,24 @@ public class FlatToolBarBorder
 		int gapSize = dotSize;
 		int gripSize = (dotSize * DOT_COUNT) + ((gapSize * (DOT_COUNT - 1)));
 
-		boolean horizontal = ((JToolBar)c).getOrientation() == SwingConstants.HORIZONTAL;
+		// include toolbar margin in grip position calculation
-		if( horizontal && !c.getComponentOrientation().isLeftToRight() )
+		Insets insets = getBorderInsets( c );
-			x += width - scale( GRIP_WIDTH );
-		x += horizontal ? dotSize : Math.round( (width - gripSize) / 2f );
-		y += horizontal ? Math.round( (height - gripSize) / 2f ) : dotSize;
 
+		// calculate grip position
+		boolean horizontal = ((JToolBar)c).getOrientation() == SwingConstants.HORIZONTAL;
+		if( horizontal ) {
+			if( c.getComponentOrientation().isLeftToRight() )
+				x += insets.left - (dotSize * 2);
+			else
+				x += width - insets.right + dotSize;
+			y += Math.round( (height - gripSize) / 2f );
+		} else {
+			// vertical
+			x += Math.round( (width - gripSize) / 2f );
+			y += insets.top - (dotSize * 2);
+		}
+
+		// paint dots
 		for( int i = 0; i < DOT_COUNT; i++ ) {
 			g.fillOval( x, y, dotSize, dotSize );
 			if( horizontal )

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatToolBarUI.java

@@ -74,6 +74,19 @@ public class FlatToolBarUI
 		return rolloverBorder;
 	}
 
+	@Override
+	public void setOrientation( int orientation ) {
+		if( orientation != toolBar.getOrientation() ) {
+			// swap margins if orientation changes when floating
+			Insets margin = toolBar.getMargin();
+			Insets newMargin = new Insets( margin.left, margin.top, margin.right, margin.bottom );
+			if( !newMargin.equals( margin ) )
+				toolBar.setMargin( newMargin );
+		}
+
+		super.setOrientation( orientation );
+	}
+
 	//---- class FlatRolloverMarginBorder -------------------------------------
 
 	/**

flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/DemoFrame.java

@@ -204,6 +204,7 @@ class DemoFrame
 
 		//======== toolBar1 ========
 		{
+			toolBar1.setMargin(new Insets(3, 3, 3, 3));
 			toolBar1.add(backButton);
 			toolBar1.add(forwardButton);
 			toolBar1.addSeparator();

flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/DemoFrame.jfd

@@ -14,6 +14,7 @@ new FormModel {
 			"$sizePolicy": 2
 			add( new FormContainer( "javax.swing.JToolBar", new FormLayoutManager( class javax.swing.JToolBar ) ) {
 				name: "toolBar1"
+				"margin": new java.awt.Insets( 3, 3, 3, 3 )
 				add( new FormComponent( "javax.swing.JButton" ) {
 					name: "backButton"
 				} )