diff --git a/flatlaf-core/src/test/java/com/formdev/flatlaf/FlatContainerTest.java b/flatlaf-core/src/test/java/com/formdev/flatlaf/FlatContainerTest.java
index 3e312712..e599250c 100644
--- a/flatlaf-core/src/test/java/com/formdev/flatlaf/FlatContainerTest.java
+++ b/flatlaf-core/src/test/java/com/formdev/flatlaf/FlatContainerTest.java
@@ -94,26 +94,25 @@ public class FlatContainerTest
 		JLabel label7 = new JLabel();
 		JPanel panel8 = new JPanel();
 		JLabel label8 = new JLabel();
+		JPanel panel14 = new JPanel();
+		moreTabsCheckBox = new JCheckBox();
 		tabScrollCheckBox = new JCheckBox();
 		hasFullBorderCheckBox = new JCheckBox();
-		moreTabsCheckBox = new JCheckBox();
 		CellConstraints cc = new CellConstraints();
 
 		//======== this ========
 		setLayout(new MigLayout(
 			"insets 0,hidemode 3",
 			// columns
-			"[grow,fill]" +
-			"[fill]",
+			"[grow,fill]",
 			// rows
-			"[grow,fill]" +
-			"[]"));
+			"[grow,fill]"));
 
 		//======== panel9 ========
 		{
 			panel9.setLayout(new FormLayout(
 				"70dlu:grow, $lcgap, 70dlu:grow",
-				"default, $lgap, fill:70dlu, $lgap, pref, 2*($lgap, fill:70dlu:grow), 2*($lgap, pref)"));
+				"default, $lgap, fill:70dlu, $lgap, pref, 2*($lgap, fill:70dlu:grow), $lgap, pref"));
 
 			//---- splitPaneLabel ----
 			splitPaneLabel.setText("JSplitPane:");
@@ -280,23 +279,36 @@ public class FlatContainerTest
 			}
 			panel9.add(tabbedPane4, cc.xy(3, 9));
 
-			//---- tabScrollCheckBox ----
-			tabScrollCheckBox.setText("tabLayoutPolicy = SCROLL");
-			tabScrollCheckBox.setMnemonic('S');
-			tabScrollCheckBox.addActionListener(e -> tabScrollChanged());
-			panel9.add(tabScrollCheckBox, cc.xy(1, 11, CellConstraints.LEFT, CellConstraints.DEFAULT));
+			//======== panel14 ========
+			{
+				panel14.setLayout(new MigLayout(
+					"insets 0,hidemode 3",
+					// columns
+					"[]" +
+					"[]" +
+					"[]",
+					// rows
+					"[center]"));
 
-			//---- hasFullBorderCheckBox ----
-			hasFullBorderCheckBox.setText("JTabbedPane.hasFullBorder");
-			hasFullBorderCheckBox.setMnemonic('F');
-			hasFullBorderCheckBox.addActionListener(e -> hasFullBorderChanged());
-			panel9.add(hasFullBorderCheckBox, cc.xy(3, 11, CellConstraints.LEFT, CellConstraints.DEFAULT));
+				//---- moreTabsCheckBox ----
+				moreTabsCheckBox.setText("more tabs");
+				moreTabsCheckBox.setMnemonic('M');
+				moreTabsCheckBox.addActionListener(e -> moreTabsChanged());
+				panel14.add(moreTabsCheckBox, "cell 0 0");
 
-			//---- moreTabsCheckBox ----
-			moreTabsCheckBox.setText("more tabs");
-			moreTabsCheckBox.setMnemonic('M');
-			moreTabsCheckBox.addActionListener(e -> moreTabsChanged());
-			panel9.add(moreTabsCheckBox, cc.xy(1, 13, CellConstraints.LEFT, CellConstraints.DEFAULT));
+				//---- tabScrollCheckBox ----
+				tabScrollCheckBox.setText("tabLayoutPolicy = SCROLL");
+				tabScrollCheckBox.setMnemonic('S');
+				tabScrollCheckBox.addActionListener(e -> tabScrollChanged());
+				panel14.add(tabScrollCheckBox, "cell 1 0,alignx left,growx 0");
+
+				//---- hasFullBorderCheckBox ----
+				hasFullBorderCheckBox.setText("JTabbedPane.hasFullBorder");
+				hasFullBorderCheckBox.setMnemonic('F');
+				hasFullBorderCheckBox.addActionListener(e -> hasFullBorderChanged());
+				panel14.add(hasFullBorderCheckBox, "cell 2 0,alignx left,growx 0");
+			}
+			panel9.add(panel14, cc.xywh(1, 11, 3, 1));
 		}
 		add(panel9, "cell 0 0");
 		// JFormDesigner - End of component initialization  //GEN-END:initComponents
@@ -307,8 +319,8 @@ public class FlatContainerTest
 	private JTabbedPane tabbedPane3;
 	private JTabbedPane tabbedPane2;
 	private JTabbedPane tabbedPane4;
+	private JCheckBox moreTabsCheckBox;
 	private JCheckBox tabScrollCheckBox;
 	private JCheckBox hasFullBorderCheckBox;
-	private JCheckBox moreTabsCheckBox;
 	// JFormDesigner - End of variables declaration  //GEN-END:variables
 }
diff --git a/flatlaf-core/src/test/java/com/formdev/flatlaf/FlatContainerTest.jfd b/flatlaf-core/src/test/java/com/formdev/flatlaf/FlatContainerTest.jfd
index 3d08527d..6f5b963b 100644
--- a/flatlaf-core/src/test/java/com/formdev/flatlaf/FlatContainerTest.jfd
+++ b/flatlaf-core/src/test/java/com/formdev/flatlaf/FlatContainerTest.jfd
@@ -8,13 +8,13 @@ new FormModel {
 		}
 		add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
 			"$layoutConstraints": "insets 0,hidemode 3"
-			"$columnConstraints": "[grow,fill][fill]"
-			"$rowConstraints": "[grow,fill][]"
+			"$columnConstraints": "[grow,fill]"
+			"$rowConstraints": "[grow,fill]"
 		} ) {
 			name: "this"
 			add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class com.jgoodies.forms.layout.FormLayout ) {
 				"$columnSpecs": "70dlu:grow, labelcompgap, 70dlu:grow"
-				"$rowSpecs": "default, linegap, fill:70dlu, linegap, pref, linegap, fill:70dlu:grow, linegap, fill:70dlu:grow, linegap, pref, linegap, pref"
+				"$rowSpecs": "default, linegap, fill:70dlu, linegap, pref, linegap, fill:70dlu:grow, linegap, fill:70dlu:grow, linegap, pref"
 			} ) {
 				name: "panel9"
 				add( new FormComponent( "javax.swing.JLabel" ) {
@@ -197,51 +197,55 @@ new FormModel {
 					"gridX": 3
 					"gridY": 9
 				} )
-				add( new FormComponent( "javax.swing.JCheckBox" ) {
-					name: "tabScrollCheckBox"
-					"text": "tabLayoutPolicy = SCROLL"
-					"mnemonic": 83
-					auxiliary() {
-						"JavaCodeGenerator.variableLocal": false
-					}
-					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "tabScrollChanged", false ) )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
+					"$layoutConstraints": "insets 0,hidemode 3"
+					"$columnConstraints": "[][][]"
+					"$rowConstraints": "[center]"
+				} ) {
+					name: "panel14"
+					add( new FormComponent( "javax.swing.JCheckBox" ) {
+						name: "moreTabsCheckBox"
+						"text": "more tabs"
+						"mnemonic": 77
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "moreTabsChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 0 0"
+					} )
+					add( new FormComponent( "javax.swing.JCheckBox" ) {
+						name: "tabScrollCheckBox"
+						"text": "tabLayoutPolicy = SCROLL"
+						"mnemonic": 83
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "tabScrollChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 1 0,alignx left,growx 0"
+					} )
+					add( new FormComponent( "javax.swing.JCheckBox" ) {
+						name: "hasFullBorderCheckBox"
+						"text": "JTabbedPane.hasFullBorder"
+						"mnemonic": 70
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "hasFullBorderChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 2 0,alignx left,growx 0"
+					} )
 				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
-					"gridX": 1
 					"gridY": 11
-					"hAlign": sfield com.jgoodies.forms.layout.CellConstraints LEFT
-				} )
-				add( new FormComponent( "javax.swing.JCheckBox" ) {
-					name: "hasFullBorderCheckBox"
-					"text": "JTabbedPane.hasFullBorder"
-					"mnemonic": 70
-					auxiliary() {
-						"JavaCodeGenerator.variableLocal": false
-					}
-					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "hasFullBorderChanged", false ) )
-				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
-					"gridX": 3
-					"gridY": 11
-					"hAlign": sfield com.jgoodies.forms.layout.CellConstraints LEFT
-				} )
-				add( new FormComponent( "javax.swing.JCheckBox" ) {
-					name: "moreTabsCheckBox"
-					"text": "more tabs"
-					"mnemonic": 77
-					auxiliary() {
-						"JavaCodeGenerator.variableLocal": false
-					}
-					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "moreTabsChanged", false ) )
-				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
-					"gridX": 1
-					"gridY": 13
-					"hAlign": sfield com.jgoodies.forms.layout.CellConstraints LEFT
+					"gridWidth": 3
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 0 0"
 			} )
 		}, new FormLayoutConstraints( null ) {
 			"location": new java.awt.Point( 0, 0 )
-			"size": new java.awt.Dimension( 405, 515 )
+			"size": new java.awt.Dimension( 500, 515 )
 		} )
 	}
 }
diff --git a/flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/TabsPanel.java b/flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/TabsPanel.java
index 9ef0f7e9..a6832836 100644
--- a/flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/TabsPanel.java
+++ b/flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/TabsPanel.java
@@ -92,9 +92,10 @@ class TabsPanel
 		JLabel label7 = new JLabel();
 		JPanel panel8 = new JPanel();
 		JLabel label8 = new JLabel();
+		JPanel panel14 = new JPanel();
+		moreTabsCheckBox = new JCheckBox();
 		tabScrollCheckBox = new JCheckBox();
 		hasFullBorderCheckBox = new JCheckBox();
-		moreTabsCheckBox = new JCheckBox();
 		CellConstraints cc = new CellConstraints();
 
 		//======== this ========
@@ -109,7 +110,7 @@ class TabsPanel
 		{
 			panel9.setLayout(new FormLayout(
 				"70dlu:grow, $lcgap, 70dlu:grow",
-				"default, $lgap, fill:70dlu, $lgap, pref, 2*($lgap, fill:70dlu:grow), 2*($lgap, pref)"));
+				"default, $lgap, fill:70dlu, $lgap, pref, 2*($lgap, fill:70dlu:grow), $lgap, pref"));
 
 			//---- splitPaneLabel ----
 			splitPaneLabel.setText("JSplitPane:");
@@ -276,23 +277,36 @@ class TabsPanel
 			}
 			panel9.add(tabbedPane4, cc.xy(3, 9));
 
-			//---- tabScrollCheckBox ----
-			tabScrollCheckBox.setText("tabLayoutPolicy = SCROLL");
-			tabScrollCheckBox.setMnemonic('S');
-			tabScrollCheckBox.addActionListener(e -> tabScrollChanged());
-			panel9.add(tabScrollCheckBox, cc.xy(1, 11, CellConstraints.LEFT, CellConstraints.DEFAULT));
+			//======== panel14 ========
+			{
+				panel14.setLayout(new MigLayout(
+					"insets 0,hidemode 3",
+					// columns
+					"[]" +
+					"[]" +
+					"[]",
+					// rows
+					"[center]"));
 
-			//---- hasFullBorderCheckBox ----
-			hasFullBorderCheckBox.setText("JTabbedPane.hasFullBorder");
-			hasFullBorderCheckBox.setMnemonic('F');
-			hasFullBorderCheckBox.addActionListener(e -> hasFullBorderChanged());
-			panel9.add(hasFullBorderCheckBox, cc.xy(3, 11, CellConstraints.LEFT, CellConstraints.DEFAULT));
+				//---- moreTabsCheckBox ----
+				moreTabsCheckBox.setText("more tabs");
+				moreTabsCheckBox.setMnemonic('M');
+				moreTabsCheckBox.addActionListener(e -> moreTabsChanged());
+				panel14.add(moreTabsCheckBox, "cell 0 0");
 
-			//---- moreTabsCheckBox ----
-			moreTabsCheckBox.setText("more tabs");
-			moreTabsCheckBox.setMnemonic('M');
-			moreTabsCheckBox.addActionListener(e -> moreTabsChanged());
-			panel9.add(moreTabsCheckBox, cc.xy(1, 13, CellConstraints.LEFT, CellConstraints.DEFAULT));
+				//---- tabScrollCheckBox ----
+				tabScrollCheckBox.setText("tabLayoutPolicy = SCROLL");
+				tabScrollCheckBox.setMnemonic('S');
+				tabScrollCheckBox.addActionListener(e -> tabScrollChanged());
+				panel14.add(tabScrollCheckBox, "cell 1 0,alignx left,growx 0");
+
+				//---- hasFullBorderCheckBox ----
+				hasFullBorderCheckBox.setText("JTabbedPane.hasFullBorder");
+				hasFullBorderCheckBox.setMnemonic('F');
+				hasFullBorderCheckBox.addActionListener(e -> hasFullBorderChanged());
+				panel14.add(hasFullBorderCheckBox, "cell 2 0,alignx left,growx 0");
+			}
+			panel9.add(panel14, cc.xywh(1, 11, 3, 1));
 		}
 		add(panel9, "cell 0 0");
 		// JFormDesigner - End of component initialization  //GEN-END:initComponents
@@ -303,8 +317,8 @@ class TabsPanel
 	private JTabbedPane tabbedPane3;
 	private JTabbedPane tabbedPane2;
 	private JTabbedPane tabbedPane4;
+	private JCheckBox moreTabsCheckBox;
 	private JCheckBox tabScrollCheckBox;
 	private JCheckBox hasFullBorderCheckBox;
-	private JCheckBox moreTabsCheckBox;
 	// JFormDesigner - End of variables declaration  //GEN-END:variables
 }
diff --git a/flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/TabsPanel.jfd b/flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/TabsPanel.jfd
index da428d8f..c74abdad 100644
--- a/flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/TabsPanel.jfd
+++ b/flatlaf-demo/src/main/java/com/formdev/flatlaf/demo/TabsPanel.jfd
@@ -14,7 +14,7 @@ new FormModel {
 			name: "this"
 			add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class com.jgoodies.forms.layout.FormLayout ) {
 				"$columnSpecs": "70dlu:grow, labelcompgap, 70dlu:grow"
-				"$rowSpecs": "default, linegap, fill:70dlu, linegap, pref, linegap, fill:70dlu:grow, linegap, fill:70dlu:grow, linegap, pref, linegap, pref"
+				"$rowSpecs": "default, linegap, fill:70dlu, linegap, pref, linegap, fill:70dlu:grow, linegap, fill:70dlu:grow, linegap, pref"
 			} ) {
 				name: "panel9"
 				add( new FormComponent( "javax.swing.JLabel" ) {
@@ -197,51 +197,55 @@ new FormModel {
 					"gridX": 3
 					"gridY": 9
 				} )
-				add( new FormComponent( "javax.swing.JCheckBox" ) {
-					name: "tabScrollCheckBox"
-					"text": "tabLayoutPolicy = SCROLL"
-					"mnemonic": 83
-					auxiliary() {
-						"JavaCodeGenerator.variableLocal": false
-					}
-					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "tabScrollChanged", false ) )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
+					"$layoutConstraints": "insets 0,hidemode 3"
+					"$columnConstraints": "[][][]"
+					"$rowConstraints": "[center]"
+				} ) {
+					name: "panel14"
+					add( new FormComponent( "javax.swing.JCheckBox" ) {
+						name: "moreTabsCheckBox"
+						"text": "more tabs"
+						"mnemonic": 77
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "moreTabsChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 0 0"
+					} )
+					add( new FormComponent( "javax.swing.JCheckBox" ) {
+						name: "tabScrollCheckBox"
+						"text": "tabLayoutPolicy = SCROLL"
+						"mnemonic": 83
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "tabScrollChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 1 0,alignx left,growx 0"
+					} )
+					add( new FormComponent( "javax.swing.JCheckBox" ) {
+						name: "hasFullBorderCheckBox"
+						"text": "JTabbedPane.hasFullBorder"
+						"mnemonic": 70
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "hasFullBorderChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 2 0,alignx left,growx 0"
+					} )
 				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
-					"gridX": 1
 					"gridY": 11
-					"hAlign": sfield com.jgoodies.forms.layout.CellConstraints LEFT
-				} )
-				add( new FormComponent( "javax.swing.JCheckBox" ) {
-					name: "hasFullBorderCheckBox"
-					"text": "JTabbedPane.hasFullBorder"
-					"mnemonic": 70
-					auxiliary() {
-						"JavaCodeGenerator.variableLocal": false
-					}
-					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "hasFullBorderChanged", false ) )
-				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
-					"gridX": 3
-					"gridY": 11
-					"hAlign": sfield com.jgoodies.forms.layout.CellConstraints LEFT
-				} )
-				add( new FormComponent( "javax.swing.JCheckBox" ) {
-					name: "moreTabsCheckBox"
-					"text": "more tabs"
-					"mnemonic": 77
-					auxiliary() {
-						"JavaCodeGenerator.variableLocal": false
-					}
-					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "moreTabsChanged", false ) )
-				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
-					"gridX": 1
-					"gridY": 13
-					"hAlign": sfield com.jgoodies.forms.layout.CellConstraints LEFT
+					"gridWidth": 3
 				} )
 			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 				"value": "cell 0 0"
 			} )
 		}, new FormLayoutConstraints( null ) {
 			"location": new java.awt.Point( 0, 0 )
-			"size": new java.awt.Dimension( 400, 585 )
+			"size": new java.awt.Dimension( 500, 515 )
 		} )
 	}
 }