diff --git a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatUIUtils.java b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatUIUtils.java
index 034177ae..e7679f9f 100644
--- a/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatUIUtils.java
+++ b/flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatUIUtils.java
@@ -73,6 +73,14 @@ public class FlatUIUtils
 			dim.height + insets.top + insets.bottom );
 	}
 
+	public static Insets addInsets( Insets insets1, Insets insets2 ) {
+		return new Insets(
+			insets1.top + insets2.top,
+			insets1.left + insets2.left,
+			insets1.bottom + insets2.bottom,
+			insets1.right + insets2.right );
+	}
+
 	public static Color getUIColor( String key, int defaultColorRGB ) {
 		Color color = UIManager.getColor( key );
 		return (color != null) ? color : new Color( defaultColorRGB );
diff --git a/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/FlatJideOssDefaultsAddon.java b/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/FlatJideOssDefaultsAddon.java
index 70f968c2..a4ef5d1e 100644
--- a/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/FlatJideOssDefaultsAddon.java
+++ b/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/FlatJideOssDefaultsAddon.java
@@ -17,7 +17,14 @@
 package com.formdev.flatlaf.jideoss;
 
 import java.io.InputStream;
+import java.util.HashMap;
+import java.util.Map;
+import javax.swing.UIDefaults;
 import com.formdev.flatlaf.FlatDefaultsAddon;
+import com.formdev.flatlaf.FlatLaf;
+import com.jidesoft.plaf.LookAndFeelFactory;
+import com.jidesoft.plaf.LookAndFeelFactory.UIDefaultsCustomizer;
+import com.jidesoft.plaf.LookAndFeelFactory.UIDefaultsInitializer;
 
 /**
  * JIDE Common Layer addon for FlatLaf.
@@ -33,9 +40,44 @@ public class FlatJideOssDefaultsAddon
 	 */
 	@Override
 	public InputStream getDefaults( Class<?> lafClass ) {
+		LookAndFeelFactory.registerDefaultInitializer( FlatLaf.class.getName(), FlatJideUIDefaultsCustomizer.class.getName() );
+		LookAndFeelFactory.registerDefaultCustomizer( FlatLaf.class.getName(), FlatJideUIDefaultsCustomizer.class.getName() );
+
 		Class<?> addonClass = this.getClass();
 		String propertiesName = "/" + addonClass.getPackage().getName().replace( '.', '/' )
 			+ '/' + lafClass.getSimpleName() + ".properties";
 		return addonClass.getResourceAsStream( propertiesName );
 	}
+
+	//---- class FlatJideUIDefaultsCustomizer ---------------------------------
+
+	/**
+	 * Because JIDE overwrites our UI defaults (from properties files) with its
+	 * own UI defaults, we have to first remember our UI defaults in the initializer
+	 * (invoked before JIDE overwrites UI defaults) and then restore them in the customizer.
+	 */
+	public static class FlatJideUIDefaultsCustomizer
+		implements UIDefaultsInitializer, UIDefaultsCustomizer
+	{
+		private static HashMap<Object, Object> jideDefaults;
+
+		@Override
+		public void initialize( UIDefaults defaults ) {
+			jideDefaults = new HashMap<>();
+
+			for( Map.Entry<Object, Object> e : defaults.entrySet() ) {
+				Object key = e.getKey();
+				if( key instanceof String && ((String)key).startsWith( "Jide" ) )
+					jideDefaults.put( key, e.getValue() );
+			}
+		}
+
+		@Override
+		public void customize( UIDefaults defaults ) {
+			if( jideDefaults != null ) {
+				defaults.putAll( jideDefaults );
+				jideDefaults = null;
+			}
+		}
+	}
 }
diff --git a/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/ui/FlatJideTabbedPaneUI.java b/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/ui/FlatJideTabbedPaneUI.java
new file mode 100644
index 00000000..e4220174
--- /dev/null
+++ b/flatlaf-jide-oss/src/main/java/com/formdev/flatlaf/jideoss/ui/FlatJideTabbedPaneUI.java
@@ -0,0 +1,371 @@
+/*
+ * Copyright 2019 FormDev Software GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.formdev.flatlaf.jideoss.ui;
+
+import static com.formdev.flatlaf.FlatClientProperties.TABBED_PANE_HAS_FULL_BORDER;
+import static com.formdev.flatlaf.FlatClientProperties.clientPropertyEquals;
+import static com.formdev.flatlaf.util.UIScale.scale;
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.FontMetrics;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Insets;
+import java.awt.Rectangle;
+import java.awt.Shape;
+import java.awt.event.MouseListener;
+import java.awt.event.MouseMotionListener;
+import java.awt.geom.Path2D;
+import java.awt.geom.Rectangle2D;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+import javax.swing.JComponent;
+import javax.swing.UIManager;
+import javax.swing.plaf.ComponentUI;
+import com.formdev.flatlaf.FlatClientProperties;
+import com.formdev.flatlaf.ui.FlatUIUtils;
+import com.jidesoft.plaf.UIDefaultsLookup;
+import com.jidesoft.plaf.basic.BasicJideTabbedPaneUI;
+import com.jidesoft.swing.JideTabbedPane;
+
+/**
+ * Provides the Flat LaF UI delegate for {@link com.jidesoft.swing.JideTabbedPane}.
+ *
+ * @author Karl Tauber
+ */
+public class FlatJideTabbedPaneUI
+	extends BasicJideTabbedPaneUI
+{
+	protected Color underlineColor;
+	protected Color disabledUnderlineColor;
+	protected Color hoverColor;
+	protected Color focusColor;
+	protected Color contentAreaColor;
+
+	protected int tabHeight;
+	protected int tabSelectionHeight;
+	protected int contentSeparatorHeight;
+	protected boolean hasFullBorder;
+	protected boolean tabsOverlapBorder;
+
+	public static ComponentUI createUI( JComponent c ) {
+		return new FlatJideTabbedPaneUI();
+	}
+
+	@Override
+	protected void installDefaults() {
+		super.installDefaults();
+
+		_background = UIDefaultsLookup.getColor( "JideTabbedPane.background" );
+
+		underlineColor = UIManager.getColor( "TabbedPane.underlineColor" );
+		disabledUnderlineColor = UIManager.getColor( "TabbedPane.disabledUnderlineColor" );
+		hoverColor = UIManager.getColor( "TabbedPane.hoverColor" );
+		focusColor = UIManager.getColor( "TabbedPane.focusColor" );
+		contentAreaColor = UIManager.getColor( "TabbedPane.contentAreaColor" );
+
+		tabHeight = UIManager.getInt( "TabbedPane.tabHeight" );
+		tabSelectionHeight = UIManager.getInt( "TabbedPane.tabSelectionHeight" );
+		contentSeparatorHeight = UIManager.getInt( "TabbedPane.contentSeparatorHeight" );
+		hasFullBorder = UIManager.getBoolean( "TabbedPane.hasFullBorder" );
+		tabsOverlapBorder = UIManager.getBoolean( "TabbedPane.tabsOverlapBorder" );
+
+		// scale
+		_textIconGap = scale( _textIconGap );
+		tabHeight = scale( tabHeight );
+		tabSelectionHeight = scale( tabSelectionHeight );
+	}
+
+	@Override
+	protected void uninstallDefaults() {
+		super.uninstallDefaults();
+
+		underlineColor = null;
+		disabledUnderlineColor = null;
+		hoverColor = null;
+		focusColor = null;
+		contentAreaColor = null;
+	}
+
+	@Override
+	protected PropertyChangeListener createPropertyChangeListener() {
+		return new PropertyChangeHandler() {
+			@Override
+			public void propertyChange( PropertyChangeEvent e ) {
+				super.propertyChange( e );
+
+				String propertyName = e.getPropertyName();
+				if( JideTabbedPane.PROPERTY_SELECTED_INDEX.equals( propertyName ) ) {
+					repaintTab( (Integer) e.getOldValue() );
+					repaintTab( (Integer) e.getNewValue() );
+				} else if( FlatClientProperties.TABBED_PANE_HAS_FULL_BORDER.equals( propertyName ) ) {
+					_tabPane.revalidate();
+					_tabPane.repaint();
+				}
+			}
+		};
+	}
+
+	private void repaintTab( int tabIndex ) {
+		if( tabIndex < 0 || tabIndex >= _tabPane.getTabCount() )
+			return;
+
+		Rectangle r = getTabBounds( _tabPane, tabIndex );
+		if( r != null )
+			_tabPane.repaint( r );
+	}
+
+	@Override
+	protected MouseListener createMouseListener() {
+		return new RolloverMouseHandler();
+	}
+
+	@Override
+	protected MouseMotionListener createMouseMotionListener() {
+		return new RolloverMouseMotionHandler();
+	}
+
+	@Override
+	protected int calculateTabHeight( int tabPlacement, int tabIndex, FontMetrics metrics ) {
+		return Math.max( tabHeight, super.calculateTabHeight( tabPlacement, tabIndex, metrics ) );
+	}
+
+	@Override
+	protected int calculateTabWidth( int tabPlacement, int tabIndex, FontMetrics metrics ) {
+		return Math.max( tabHeight, super.calculateTabWidth( tabPlacement, tabIndex, metrics ) );
+	}
+
+	@Override
+	protected Insets getTabInsets( int tabPlacement, int tabIndex ) {
+		return scale( super.getTabInsets( tabPlacement, tabIndex ) );
+	}
+
+	@Override
+	protected Insets getSelectedTabPadInsets( int tabPlacement ) {
+		return scale( super.getSelectedTabPadInsets( tabPlacement ) );
+	}
+
+	@Override
+	protected Insets getTabAreaInsets( int tabPlacement ) {
+		return scale( super.getTabAreaInsets( tabPlacement ) );
+	}
+
+	@Override
+	protected int getTabShape() {
+		return JideTabbedPane.SHAPE_BOX;
+	}
+
+	/**
+	 * The content border insets are used to create a separator between tabs and content.
+	 * If client property JTabbedPane.hasFullBorder is true, then the content border insets
+	 * are also used for the border.
+	 */
+	@Override
+	protected Insets getContentBorderInsets( int tabPlacement ) {
+		return FlatUIUtils.addInsets( getContentBorderInsets0( tabPlacement ),
+			scale( super.getContentBorderInsets( tabPlacement ) ) );
+	}
+
+	private Insets getContentBorderInsets0( int tabPlacement ) {
+		boolean hasFullBorder = this.hasFullBorder || clientPropertyEquals( _tabPane, TABBED_PANE_HAS_FULL_BORDER, true );
+		int sh = scale( contentSeparatorHeight );
+		Insets insets = hasFullBorder ? new Insets( sh, sh, sh, sh ) : new Insets( sh, 0, 0, 0 );
+
+		Insets contentBorderInsets = new Insets( 0, 0, 0, 0 );
+		rotateInsets( insets, contentBorderInsets, tabPlacement );
+
+		return contentBorderInsets;
+	}
+
+	@Override
+	public void update( Graphics g, JComponent c ) {
+		FlatUIUtils.setRenderingHints( (Graphics2D) g );
+
+		super.update( g, c );
+	}
+
+	@Override
+	public void paint( Graphics g, JComponent c ) {
+		super.paint( g, c );
+
+		// must paint tab area after content border was painted
+		if( !scrollableTabLayoutEnabled() && _tabPane.getTabCount() > 0 )
+			paintTabArea( g, _tabPane.getTabPlacement(), _tabPane.getSelectedIndex(), c );
+	}
+
+	@Override
+	protected void paintTabBackground( Graphics g, int tabPlacement, int tabIndex,
+		int x, int y, int w, int h, boolean isSelected )
+	{
+		// paint tab background
+		boolean enabled = _tabPane.isEnabled();
+		g.setColor( enabled && _tabPane.isEnabledAt( tabIndex ) && _indexMouseOver == tabIndex
+			? hoverColor
+			: (enabled && isSelected && _tabPane.hasFocus()
+				? focusColor
+				: _tabPane.getBackgroundAt( tabIndex )) );
+		g.fillRect( x, y, w, h );
+	}
+
+	@Override
+	protected void paintTabBorder( Graphics g, int tabPlacement, int tabIndex, int x, int y, int w, int h,
+		boolean isSelected )
+	{
+		if( isSelected )
+			paintTabSelection( g, tabPlacement, x, y, w, h );
+	}
+
+	protected void paintTabSelection( Graphics g, int tabPlacement,  int x, int y, int w, int h ) {
+		// increase clip bounds in scroll-tab-layout to paint over the separator line
+		Rectangle clipBounds = scrollableTabLayoutEnabled() ? g.getClipBounds() : null;
+		if( clipBounds != null ) {
+			Rectangle newClipBounds = new Rectangle( clipBounds );
+			int contentSeparatorHeight = scale( this.contentSeparatorHeight );
+			switch( tabPlacement ) {
+				case TOP:
+				default:
+					newClipBounds.height += contentSeparatorHeight;
+					break;
+
+				case BOTTOM:
+					newClipBounds.y -= contentSeparatorHeight;
+					newClipBounds.height += contentSeparatorHeight;
+					break;
+
+				case LEFT:
+					newClipBounds.width += contentSeparatorHeight;
+					break;
+
+				case RIGHT:
+					newClipBounds.x -= contentSeparatorHeight;
+					newClipBounds.width += contentSeparatorHeight;
+					break;
+			}
+			g.setClip( newClipBounds );
+		}
+
+		g.setColor( _tabPane.isEnabled() ? underlineColor : disabledUnderlineColor );
+
+		Insets contentInsets = getContentBorderInsets0( tabPlacement );
+
+		// paint underline selection
+		switch( tabPlacement ) {
+			case TOP:
+			default:
+				int sy = y + h + contentInsets.top - tabSelectionHeight;
+				g.fillRect( x, sy, w, tabSelectionHeight );
+				break;
+
+			case BOTTOM:
+				g.fillRect( x, y - contentInsets.bottom, w, tabSelectionHeight );
+				break;
+
+			case LEFT:
+				int sx = x + w + contentInsets.left - tabSelectionHeight;
+				g.fillRect( sx, y, tabSelectionHeight, h );
+				break;
+
+			case RIGHT:
+				g.fillRect( x - contentInsets.right, y, tabSelectionHeight, h );
+				break;
+		}
+
+		if( clipBounds != null )
+			g.setClip( clipBounds );
+	}
+
+	/**
+	 * Actually does the nearly the same as super.paintContentBorder() but
+	 *   - not invoking paintContentBorder*Edge() methods
+	 *   - repaint selection
+	 */
+	@Override
+	protected void paintContentBorder( Graphics g, int tabPlacement, int selectedIndex ) {
+		if( _tabPane.getTabCount() <= 0 )
+			return;
+
+		Insets insets = _tabPane.getInsets();
+		Insets tabAreaInsets = getTabAreaInsets( tabPlacement );
+
+		int x = insets.left;
+		int y = insets.top;
+		int w = _tabPane.getWidth() - insets.right - insets.left;
+		int h = _tabPane.getHeight() - insets.top - insets.bottom;
+
+		Dimension lsize = isTabLeadingComponentVisible() ? _tabLeadingComponent.getPreferredSize() : new Dimension();
+		Dimension tsize = isTabTrailingComponentVisible() ? _tabTrailingComponent.getPreferredSize() : new Dimension();
+
+		// remove tabs from bounds
+		switch( tabPlacement ) {
+			case LEFT:
+				x += Math.max( calculateTabAreaWidth( tabPlacement, _runCount, _maxTabWidth ),
+					Math.max( lsize.width, tsize.width ) );
+				if( tabsOverlapBorder )
+					x -= tabAreaInsets.right;
+				w -= (x - insets.left);
+				break;
+			case RIGHT:
+				w -= calculateTabAreaWidth( tabPlacement, _runCount, _maxTabWidth );
+				if( tabsOverlapBorder )
+					w += tabAreaInsets.left;
+				break;
+			case BOTTOM:
+				h -= calculateTabAreaHeight( tabPlacement, _runCount, _maxTabHeight );
+				if( tabsOverlapBorder )
+					h += tabAreaInsets.top;
+				break;
+			case TOP:
+			default:
+				y += Math.max( calculateTabAreaHeight( tabPlacement, _runCount, _maxTabHeight ),
+					Math.max( lsize.height, tsize.height ) );
+				if( tabsOverlapBorder )
+					y -= tabAreaInsets.bottom;
+				h -= (y - insets.top);
+		}
+
+		// compute insets for separator or full border
+		boolean hasFullBorder = this.hasFullBorder || clientPropertyEquals( _tabPane, TABBED_PANE_HAS_FULL_BORDER, true );
+		int sh = scale( contentSeparatorHeight * 100 ); // multiply by 100 because rotateInsets() does not use floats
+		Insets ci = new Insets( 0, 0, 0, 0 );
+		rotateInsets( hasFullBorder ? new Insets( sh, sh, sh, sh ) : new Insets( sh, 0, 0, 0 ), ci, tabPlacement );
+
+		// paint content area
+		g.setColor( contentAreaColor );
+		Path2D path = new Path2D.Float( Path2D.WIND_EVEN_ODD );
+		path.append( new Rectangle2D.Float( x, y, w, h ), false );
+		path.append( new Rectangle2D.Float( x + (ci.left / 100f), y + (ci.top / 100f),
+			w - (ci.left / 100f) - (ci.right / 100f), h - (ci.top / 100f) - (ci.bottom / 100f) ), false );
+		((Graphics2D)g).fill( path );
+
+		// repaint selection in scroll-tab-layout because it may be painted before
+		// the content border was painted (from BasicTabbedPaneUI$ScrollableTabPanel)
+		if( scrollableTabLayoutEnabled() && selectedIndex >= 0 && _tabScroller != null && _tabScroller.viewport != null ) {
+			Rectangle tabRect = getTabBounds( _tabPane, selectedIndex );
+
+			Shape oldClip = g.getClip();
+			g.setClip( _tabScroller.viewport.getBounds() );
+			paintTabSelection( g, tabPlacement, tabRect.x, tabRect.y, tabRect.width, tabRect.height );
+			g.setClip( oldClip );
+		}
+	}
+
+	@Override
+	protected void paintFocusIndicator( Graphics g, int tabPlacement, Rectangle[] rects, int tabIndex,
+		Rectangle iconRect, Rectangle textRect, boolean isSelected )
+	{
+	}
+}
diff --git a/flatlaf-jide-oss/src/main/resources/com/formdev/flatlaf/jideoss/FlatLaf.properties b/flatlaf-jide-oss/src/main/resources/com/formdev/flatlaf/jideoss/FlatLaf.properties
new file mode 100644
index 00000000..2313450d
--- /dev/null
+++ b/flatlaf-jide-oss/src/main/resources/com/formdev/flatlaf/jideoss/FlatLaf.properties
@@ -0,0 +1,32 @@
+#
+# Copyright 2019 FormDev Software GmbH
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+#---- UI delegates ----
+
+JideTabbedPaneUI=com.formdev.flatlaf.jideoss.ui.FlatJideTabbedPaneUI
+
+
+#---- JideTabbedPane ----
+
+JideTabbedPane.background=@background
+JideTabbedPane.foreground=@foreground
+JideTabbedPane.tabAreaBackground=@background
+
+JideTabbedPane.tabInsets=@@TabbedPane.tabInsets
+JideTabbedPane.tabAreaInsets=@@TabbedPane.tabAreaInsets
+JideTabbedPane.contentBorderInsets=0,0,0,0
+JideTabbedPane.tabRunOverlay=@@TabbedPane.tabRunOverlay
+JideTabbedPane.shadow=@@TabbedPane.shadow
diff --git a/flatlaf-testing/build.gradle.kts b/flatlaf-testing/build.gradle.kts
index 0ad46588..d81729d8 100644
--- a/flatlaf-testing/build.gradle.kts
+++ b/flatlaf-testing/build.gradle.kts
@@ -24,6 +24,7 @@ dependencies {
 	implementation( project( ":flatlaf-core" ) )
 	implementation( project( ":flatlaf-extras" ) )
 	implementation( project( ":flatlaf-swingx" ) )
+	implementation( project( ":flatlaf-jide-oss" ) )
 
 	implementation( "com.miglayout:miglayout-swing:5.2" )
 	implementation( "com.jgoodies:jgoodies-forms:1.9.0" )
diff --git a/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/jideoss/FlatJideOssTest.java b/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/jideoss/FlatJideOssTest.java
new file mode 100644
index 00000000..dfbab877
--- /dev/null
+++ b/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/jideoss/FlatJideOssTest.java
@@ -0,0 +1,294 @@
+/*
+ * Copyright 2019 FormDev Software GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.formdev.flatlaf.testing.jideoss;
+
+import static com.formdev.flatlaf.FlatClientProperties.TABBED_PANE_HAS_FULL_BORDER;
+import java.awt.*;
+import javax.swing.*;
+import javax.swing.border.*;
+import com.formdev.flatlaf.testing.*;
+import com.formdev.flatlaf.testing.FlatTestFrame;
+import com.jgoodies.forms.layout.*;
+import com.jidesoft.plaf.LookAndFeelFactory;
+import com.jidesoft.swing.*;
+import net.miginfocom.swing.*;
+
+/**
+ * @author Karl Tauber
+ */
+public class FlatJideOssTest
+	extends FlatTestPanel
+{
+	public static void main( String[] args ) {
+		SwingUtilities.invokeLater( () -> {
+			FlatTestFrame frame = FlatTestFrame.create( args, "FlatJideOssTest" );
+			LookAndFeelFactory.installJideExtension();
+			frame.showFrame( FlatJideOssTest::new );
+
+			UIManager.addPropertyChangeListener( e -> {
+				if( "lookAndFeel".equals( e.getPropertyName() ) ) {
+					LookAndFeelFactory.installJideExtension();
+				}
+			} );
+		} );
+	}
+
+	FlatJideOssTest() {
+		initComponents();
+	}
+
+	private void tabScrollChanged() {
+		int tabLayoutPolicy = tabScrollCheckBox.isSelected() ? JTabbedPane.SCROLL_TAB_LAYOUT : JTabbedPane.WRAP_TAB_LAYOUT;
+		tabbedPane1.setTabLayoutPolicy( tabLayoutPolicy );
+		tabbedPane2.setTabLayoutPolicy( tabLayoutPolicy );
+		tabbedPane3.setTabLayoutPolicy( tabLayoutPolicy );
+		tabbedPane4.setTabLayoutPolicy( tabLayoutPolicy );
+	}
+
+	private void hasFullBorderChanged() {
+		Boolean hasFullBorder = hasFullBorderCheckBox.isSelected() ? true : null;
+		tabbedPane1.putClientProperty( TABBED_PANE_HAS_FULL_BORDER, hasFullBorder );
+		tabbedPane2.putClientProperty( TABBED_PANE_HAS_FULL_BORDER, hasFullBorder );
+		tabbedPane3.putClientProperty( TABBED_PANE_HAS_FULL_BORDER, hasFullBorder );
+		tabbedPane4.putClientProperty( TABBED_PANE_HAS_FULL_BORDER, hasFullBorder );
+	}
+
+	private void moreTabsChanged() {
+		boolean moreTabs = moreTabsCheckBox.isSelected();
+		addRemoveMoreTabs( tabbedPane1, moreTabs );
+		addRemoveMoreTabs( tabbedPane2, moreTabs );
+		addRemoveMoreTabs( tabbedPane3, moreTabs );
+		addRemoveMoreTabs( tabbedPane4, moreTabs );
+	}
+
+	private void addRemoveMoreTabs( JTabbedPane tabbedPane, boolean add ) {
+		if( add ) {
+			tabbedPane.addTab( "Tab 4", new JLabel( "tab 4" ) );
+			tabbedPane.addTab( "Tab 5", new JLabel( "tab 5" ) );
+		} else {
+			int tabCount = tabbedPane.getTabCount();
+			if( tabCount > 3 ) {
+				for( int i = 0; i < 2; i++ )
+					tabbedPane.removeTabAt( tabbedPane.getTabCount() - 1 );
+			}
+		}
+	}
+
+	private void initComponents() {
+		// JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
+		JPanel panel9 = new JPanel();
+		JLabel tabbedPaneLabel = new JLabel();
+		tabbedPane1 = new JideTabbedPane();
+		JPanel panel1 = new JPanel();
+		JLabel label1 = new JLabel();
+		JPanel panel2 = new JPanel();
+		JLabel label2 = new JLabel();
+		tabbedPane3 = new JideTabbedPane();
+		JPanel panel5 = new JPanel();
+		JLabel label5 = new JLabel();
+		JPanel panel6 = new JPanel();
+		JLabel label6 = new JLabel();
+		tabbedPane2 = new JideTabbedPane();
+		JPanel panel3 = new JPanel();
+		JLabel label3 = new JLabel();
+		JPanel panel4 = new JPanel();
+		JLabel label4 = new JLabel();
+		tabbedPane4 = new JideTabbedPane();
+		JPanel panel7 = new JPanel();
+		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();
+		CellConstraints cc = new CellConstraints();
+
+		//======== this ========
+		setLayout(new MigLayout(
+			"insets dialog,hidemode 3",
+			// columns
+			"[grow,fill]",
+			// rows
+			"[grow,fill]"));
+
+		//======== panel9 ========
+		{
+			panel9.setOpaque(false);
+			panel9.setLayout(new FormLayout(
+				"70dlu:grow, $lcgap, 70dlu:grow",
+				"pref, 2*($lgap, fill:70dlu:grow), $lgap, pref"));
+
+			//---- tabbedPaneLabel ----
+			tabbedPaneLabel.setText("JideTabbedPane:");
+			panel9.add(tabbedPaneLabel, cc.xy(1, 1));
+
+			//======== tabbedPane1 ========
+			{
+
+				//======== panel1 ========
+				{
+					panel1.setLayout(new FlowLayout());
+
+					//---- label1 ----
+					label1.setText("TOP");
+					panel1.add(label1);
+				}
+				tabbedPane1.addTab("Tab 1", panel1);
+
+				//======== panel2 ========
+				{
+					panel2.setBorder(new LineBorder(Color.magenta));
+					panel2.setLayout(new FlowLayout());
+				}
+				tabbedPane1.addTab("Tab 2", panel2);
+
+				//---- label2 ----
+				label2.setText("text");
+				tabbedPane1.addTab("Tab 3", label2);
+			}
+			panel9.add(tabbedPane1, cc.xy(1, 3));
+
+			//======== tabbedPane3 ========
+			{
+				tabbedPane3.setTabPlacement(SwingConstants.LEFT);
+
+				//======== panel5 ========
+				{
+					panel5.setLayout(new FlowLayout());
+
+					//---- label5 ----
+					label5.setText("LEFT");
+					panel5.add(label5);
+				}
+				tabbedPane3.addTab("Tab 1", panel5);
+
+				//======== panel6 ========
+				{
+					panel6.setBorder(new LineBorder(Color.magenta));
+					panel6.setLayout(new FlowLayout());
+				}
+				tabbedPane3.addTab("Tab 2", panel6);
+
+				//---- label6 ----
+				label6.setText("text");
+				tabbedPane3.addTab("Tab 3", label6);
+			}
+			panel9.add(tabbedPane3, cc.xy(3, 3));
+
+			//======== tabbedPane2 ========
+			{
+				tabbedPane2.setTabPlacement(SwingConstants.BOTTOM);
+
+				//======== panel3 ========
+				{
+					panel3.setLayout(new FlowLayout());
+
+					//---- label3 ----
+					label3.setText("BOTTOM");
+					panel3.add(label3);
+				}
+				tabbedPane2.addTab("Tab 1", panel3);
+
+				//======== panel4 ========
+				{
+					panel4.setBorder(new LineBorder(Color.magenta));
+					panel4.setLayout(new FlowLayout());
+				}
+				tabbedPane2.addTab("Tab 2", panel4);
+				tabbedPane2.setEnabledAt(1, false);
+
+				//---- label4 ----
+				label4.setText("text");
+				tabbedPane2.addTab("Tab 3", label4);
+			}
+			panel9.add(tabbedPane2, cc.xy(1, 5));
+
+			//======== tabbedPane4 ========
+			{
+				tabbedPane4.setTabPlacement(SwingConstants.RIGHT);
+
+				//======== panel7 ========
+				{
+					panel7.setLayout(new FlowLayout());
+
+					//---- label7 ----
+					label7.setText("RIGHT");
+					panel7.add(label7);
+				}
+				tabbedPane4.addTab("Tab 1", panel7);
+
+				//======== panel8 ========
+				{
+					panel8.setBorder(new LineBorder(Color.magenta));
+					panel8.setLayout(new FlowLayout());
+				}
+				tabbedPane4.addTab("Tab 2", panel8);
+
+				//---- label8 ----
+				label8.setText("text");
+				tabbedPane4.addTab("Tab 3", label8);
+			}
+			panel9.add(tabbedPane4, cc.xy(3, 5));
+
+			//======== panel14 ========
+			{
+				panel14.setOpaque(false);
+				panel14.setLayout(new MigLayout(
+					"insets 0,hidemode 3",
+					// columns
+					"[]" +
+					"[]" +
+					"[]",
+					// rows
+					"[center]"));
+
+				//---- moreTabsCheckBox ----
+				moreTabsCheckBox.setText("more tabs");
+				moreTabsCheckBox.setMnemonic('M');
+				moreTabsCheckBox.addActionListener(e -> moreTabsChanged());
+				panel14.add(moreTabsCheckBox, "cell 0 0");
+
+				//---- tabScrollCheckBox ----
+				tabScrollCheckBox.setText("tabLayoutPolicy = SCROLL");
+				tabScrollCheckBox.setMnemonic('S');
+				tabScrollCheckBox.setSelected(true);
+				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, 7, 3, 1));
+		}
+		add(panel9, "cell 0 0");
+		// JFormDesigner - End of component initialization  //GEN-END:initComponents
+	}
+
+	// JFormDesigner - Variables declaration - DO NOT MODIFY  //GEN-BEGIN:variables
+	private JideTabbedPane tabbedPane1;
+	private JideTabbedPane tabbedPane3;
+	private JideTabbedPane tabbedPane2;
+	private JideTabbedPane tabbedPane4;
+	private JCheckBox moreTabsCheckBox;
+	private JCheckBox tabScrollCheckBox;
+	private JCheckBox hasFullBorderCheckBox;
+	// JFormDesigner - End of variables declaration  //GEN-END:variables
+}
diff --git a/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/jideoss/FlatJideOssTest.jfd b/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/jideoss/FlatJideOssTest.jfd
new file mode 100644
index 00000000..d181cfdc
--- /dev/null
+++ b/flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/jideoss/FlatJideOssTest.jfd
@@ -0,0 +1,203 @@
+JFDML JFormDesigner: "7.0.0.0.194" Java: "11.0.2" encoding: "UTF-8"
+
+new FormModel {
+	contentType: "form/swing"
+	root: new FormRoot {
+		auxiliary() {
+			"JavaCodeGenerator.defaultVariableLocal": true
+		}
+		add( new FormContainer( "com.formdev.flatlaf.testing.FlatTestPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
+			"$layoutConstraints": "insets dialog,hidemode 3"
+			"$columnConstraints": "[grow,fill]"
+			"$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": "pref, linegap, fill:70dlu:grow, linegap, fill:70dlu:grow, linegap, pref"
+			} ) {
+				name: "panel9"
+				"opaque": false
+				add( new FormComponent( "javax.swing.JLabel" ) {
+					name: "tabbedPaneLabel"
+					"text": "JideTabbedPane:"
+				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
+					"gridX": 1
+				} )
+				add( new FormContainer( "com.jidesoft.swing.JideTabbedPane", new FormLayoutManager( class javax.swing.JTabbedPane ) ) {
+					name: "tabbedPane1"
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+						name: "panel1"
+						add( new FormComponent( "javax.swing.JLabel" ) {
+							name: "label1"
+							"text": "TOP"
+						} )
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 1"
+					} )
+					add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+						name: "panel2"
+						"border": &LineBorder0 new javax.swing.border.LineBorder( sfield java.awt.Color magenta, 1, false )
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 2"
+					} )
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "label2"
+						"text": "text"
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 3"
+					} )
+				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
+					"gridX": 1
+					"gridY": 3
+				} )
+				add( new FormContainer( "com.jidesoft.swing.JideTabbedPane", new FormLayoutManager( class javax.swing.JTabbedPane ) ) {
+					name: "tabbedPane3"
+					"tabPlacement": 2
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+						name: "panel5"
+						add( new FormComponent( "javax.swing.JLabel" ) {
+							name: "label5"
+							"text": "LEFT"
+						} )
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 1"
+					} )
+					add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+						name: "panel6"
+						"border": #LineBorder0
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 2"
+					} )
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "label6"
+						"text": "text"
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 3"
+					} )
+				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
+					"gridX": 3
+					"gridY": 3
+				} )
+				add( new FormContainer( "com.jidesoft.swing.JideTabbedPane", new FormLayoutManager( class javax.swing.JTabbedPane ) ) {
+					name: "tabbedPane2"
+					"tabPlacement": 3
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+						name: "panel3"
+						add( new FormComponent( "javax.swing.JLabel" ) {
+							name: "label3"
+							"text": "BOTTOM"
+						} )
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 1"
+					} )
+					add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+						name: "panel4"
+						"border": #LineBorder0
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 2"
+						"enabled": false
+					} )
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "label4"
+						"text": "text"
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 3"
+					} )
+				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
+					"gridY": 5
+				} )
+				add( new FormContainer( "com.jidesoft.swing.JideTabbedPane", new FormLayoutManager( class javax.swing.JTabbedPane ) ) {
+					name: "tabbedPane4"
+					"tabPlacement": 4
+					auxiliary() {
+						"JavaCodeGenerator.variableLocal": false
+					}
+					add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+						name: "panel7"
+						add( new FormComponent( "javax.swing.JLabel" ) {
+							name: "label7"
+							"text": "RIGHT"
+						} )
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 1"
+					} )
+					add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class java.awt.FlowLayout ) ) {
+						name: "panel8"
+						"border": #LineBorder0
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 2"
+					} )
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "label8"
+						"text": "text"
+					}, new FormLayoutConstraints( null ) {
+						"title": "Tab 3"
+					} )
+				}, new FormLayoutConstraints( class com.jgoodies.forms.layout.CellConstraints ) {
+					"gridX": 3
+					"gridY": 5
+				} )
+				add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
+					"$layoutConstraints": "insets 0,hidemode 3"
+					"$columnConstraints": "[][][]"
+					"$rowConstraints": "[center]"
+				} ) {
+					name: "panel14"
+					"opaque": false
+					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
+						"selected": true
+						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 ) {
+					"gridY": 7
+					"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( 500, 500 )
+		} )
+	}
+}
diff --git a/flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/FlatTestLaf.properties b/flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/FlatTestLaf.properties
index ad511051..fb442327 100644
--- a/flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/FlatTestLaf.properties
+++ b/flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/FlatTestLaf.properties
@@ -17,6 +17,7 @@
 #---- variables ----
 
 @background=ccffcc
+@foreground=ff0000
 @selectionBackground=00aa00
 @selectionInactiveBackground=888888
 @selectionInactiveForeground=ffffff
@@ -29,7 +30,7 @@
 #---- globals ----
 
 *.background=@background
-*.foreground=ff0000
+*.foreground=@foreground
 *.textBackground=ccffcc
 *.textForeground=ff0000
 *.caretForeground=0000ff