diff --git a/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesPanel.java b/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesPanel.java
new file mode 100644
index 0000000..79719ec
--- /dev/null
+++ b/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesPanel.java
@@ -0,0 +1,555 @@
+/*
+ * 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.intellijthemes;
+
+import java.awt.Component;
+import java.awt.Desktop;
+import java.awt.EventQueue;
+import java.awt.Graphics;
+import java.awt.Rectangle;
+import java.awt.Window;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.awt.event.WindowListener;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Objects;
+import java.util.function.Predicate;
+import javax.swing.*;
+import javax.swing.border.Border;
+import javax.swing.border.CompoundBorder;
+import javax.swing.event.*;
+import com.formdev.flatlaf.FlatClientProperties;
+import com.formdev.flatlaf.FlatDarculaLaf;
+import com.formdev.flatlaf.FlatDarkLaf;
+import com.formdev.flatlaf.FlatIntelliJLaf;
+import com.formdev.flatlaf.FlatLaf;
+import com.formdev.flatlaf.FlatLightLaf;
+import com.formdev.flatlaf.FlatPropertiesLaf;
+import com.formdev.flatlaf.IntelliJTheme;
+import com.formdev.flatlaf.demo.DemoPrefs;
+import com.formdev.flatlaf.extras.FlatAnimatedLafChange;
+import com.formdev.flatlaf.extras.FlatSVGIcon;
+import com.formdev.flatlaf.themes.*;
+import com.formdev.flatlaf.ui.FlatListUI;
+import com.formdev.flatlaf.util.LoggingFacade;
+import net.miginfocom.swing.*;
+
+/**
+ * @author Karl Tauber
+ */
+public class IJThemesPanel
+	extends JPanel
+{
+	public static final String THEMES_PACKAGE = "/com/formdev/flatlaf/intellijthemes/themes/";
+
+	private final IJThemesManager themesManager = new IJThemesManager();
+	private final List<IJThemeInfo> themes = new ArrayList<>();
+	private final HashMap<Integer, String> categories = new HashMap<>();
+	private final PropertyChangeListener lafListener = this::lafChanged;
+	private final WindowListener windowListener = new WindowAdapter() {
+		@Override
+		public void windowActivated( WindowEvent e ) {
+			IJThemesPanel.this.windowActivated();
+		}
+	};
+	private Window window;
+
+	private boolean isAdjustingThemesList;
+	private long lastLafChangeTime = System.currentTimeMillis();
+
+	public IJThemesPanel() {
+		initComponents();
+
+		pluginButton.setEnabled( false );
+		sourceCodeButton.setEnabled( false );
+
+		// create renderer
+		themesList.setCellRenderer( new DefaultListCellRenderer() {
+			private int index;
+			private boolean isSelected;
+			private int titleHeight;
+
+			@Override
+			public Component getListCellRendererComponent( JList<?> list, Object value,
+				int index, boolean isSelected, boolean cellHasFocus )
+			{
+				this.index = index;
+				this.isSelected = isSelected;
+				this.titleHeight = 0;
+
+				String title = categories.get( index );
+				String name = ((IJThemeInfo)value).name;
+				int sep = name.indexOf( '/' );
+				if( sep >= 0 )
+					name = name.substring( sep + 1 ).trim();
+
+				JComponent c = (JComponent) super.getListCellRendererComponent( list, name, index, isSelected, cellHasFocus );
+				c.setToolTipText( buildToolTip( (IJThemeInfo) value ) );
+				if( title != null ) {
+					Border titledBorder = new ListCellTitledBorder( themesList, title );
+					c.setBorder( new CompoundBorder( titledBorder, c.getBorder() ) );
+					titleHeight = titledBorder.getBorderInsets( c ).top;
+				}
+				return c;
+			}
+
+			@Override
+			public boolean isOpaque() {
+				return !isSelectedTitle();
+			}
+
+			@Override
+			protected void paintComponent( Graphics g ) {
+				if( isSelectedTitle() ) {
+					g.setColor( getBackground() );
+					FlatListUI.paintCellSelection( themesList, g, index, 0, titleHeight, getWidth(), getHeight() - titleHeight );
+				}
+
+				super.paintComponent( g );
+			}
+
+			private boolean isSelectedTitle() {
+				return titleHeight > 0 && isSelected && UIManager.getLookAndFeel() instanceof FlatLaf;
+			}
+
+			private String buildToolTip( IJThemeInfo ti ) {
+				if( ti.themeFile != null )
+					return ti.themeFile.getPath();
+				if( ti.license == null )
+					return ti.name;
+
+				return "Name: " + ti.name
+					+ "\nLicense: " + ti.license
+					+ "\nSource Code: " + ti.sourceCodeUrl;
+			}
+		} );
+
+		updateThemesList();
+	}
+
+	private void updateThemesList() {
+		int filterLightDark = filterComboBox.getSelectedIndex();
+		boolean showLight = (filterLightDark != 2);
+		boolean showDark = (filterLightDark != 1);
+
+		// load theme infos
+		themesManager.loadBundledThemes();
+		themesManager.loadThemesFromDirectory();
+
+		// sort themes by name
+		Comparator<? super IJThemeInfo> comparator = (t1, t2) -> t1.name.compareToIgnoreCase( t2.name );
+		themesManager.bundledThemes.sort( comparator );
+		themesManager.moreThemes.sort( comparator );
+
+		// remember selection (must be invoked before clearing themes field)
+		IJThemeInfo oldSel = themesList.getSelectedValue();
+
+		themes.clear();
+		categories.clear();
+
+		// add core themes at beginning
+		categories.put( themes.size(), "Core Themes" );
+		if( showLight )
+			themes.add( new IJThemeInfo( "FlatLaf Light", false, FlatLightLaf.class.getName() ) );
+		if( showDark )
+			themes.add( new IJThemeInfo( "FlatLaf Dark", true, FlatDarkLaf.class.getName() ) );
+		if( showLight )
+			themes.add( new IJThemeInfo( "FlatLaf IntelliJ", false, FlatIntelliJLaf.class.getName() ) );
+		if( showDark )
+			themes.add( new IJThemeInfo( "FlatLaf Darcula", true, FlatDarculaLaf.class.getName() ) );
+
+		if( showLight )
+			themes.add( new IJThemeInfo( "FlatLaf macOS Light", false, FlatMacLightLaf.class.getName() ) );
+		if( showDark )
+			themes.add( new IJThemeInfo( "FlatLaf macOS Dark", true, FlatMacDarkLaf.class.getName() ) );
+
+		// add themes from directory
+		categories.put( themes.size(), "Current Directory" );
+		themes.addAll( themesManager.moreThemes );
+
+		// add uncategorized bundled themes
+		categories.put( themes.size(), "IntelliJ Themes" );
+		for( IJThemeInfo ti : themesManager.bundledThemes ) {
+			boolean show = (showLight && !ti.dark) || (showDark && ti.dark);
+			if( show && !ti.name.contains( "/" ) )
+				themes.add( ti );
+		}
+
+		// add categorized bundled themes
+		String lastCategory = null;
+		for( IJThemeInfo ti : themesManager.bundledThemes ) {
+			boolean show = (showLight && !ti.dark) || (showDark && ti.dark);
+			int sep = ti.name.indexOf( '/' );
+			if( !show || sep < 0 )
+				continue;
+
+			String category = ti.name.substring( 0, sep ).trim();
+			if( !Objects.equals( lastCategory, category ) ) {
+				lastCategory = category;
+				categories.put( themes.size(), category );
+			}
+
+			themes.add( ti );
+		}
+
+		// fill themes list
+		themesList.setModel( new AbstractListModel<IJThemeInfo>() {
+			@Override
+			public int getSize() {
+				return themes.size();
+			}
+			@Override
+			public IJThemeInfo getElementAt( int index ) {
+				return themes.get( index );
+			}
+		} );
+
+		// restore selection
+		if( oldSel != null ) {
+			for( int i = 0; i < themes.size(); i++ ) {
+				IJThemeInfo theme = themes.get( i );
+				if( oldSel.name.equals( theme.name ) &&
+					Objects.equals( oldSel.themeFile, theme.themeFile ) &&
+					Objects.equals( oldSel.lafClassName, theme.lafClassName ) )
+				{
+					themesList.setSelectedIndex( i );
+					break;
+				}
+			}
+
+			// select first theme if none selected
+			if( themesList.getSelectedIndex() < 0 )
+				themesList.setSelectedIndex( 0 );
+		}
+
+		// scroll selection into visible area
+		int sel = themesList.getSelectedIndex();
+		if( sel >= 0 ) {
+			Rectangle bounds = themesList.getCellBounds( sel, sel );
+			if( bounds != null )
+				themesList.scrollRectToVisible( bounds );
+		}
+	}
+
+	public void selectPreviousTheme() {
+		int sel = themesList.getSelectedIndex();
+		if( sel > 0 )
+			themesList.setSelectedIndex( sel - 1 );
+	}
+
+	public void selectNextTheme() {
+		int sel = themesList.getSelectedIndex();
+		themesList.setSelectedIndex( sel + 1 );
+	}
+
+	private void themesListValueChanged( ListSelectionEvent e ) {
+		IJThemeInfo themeInfo = themesList.getSelectedValue();
+		pluginButton.setEnabled( themeInfo != null && themeInfo.pluginUrl != null );
+		sourceCodeButton.setEnabled( themeInfo != null && themeInfo.sourceCodePath != null );
+
+		if( e.getValueIsAdjusting() || isAdjustingThemesList )
+			return;
+
+		EventQueue.invokeLater( () -> {
+			setTheme( themeInfo, false );
+		} );
+	}
+
+	private void setTheme( IJThemeInfo themeInfo, boolean reload ) {
+		if( themeInfo == null )
+			return;
+
+		// change look and feel
+		if( themeInfo.lafClassName != null ) {
+			if( !reload && themeInfo.lafClassName.equals( UIManager.getLookAndFeel().getClass().getName() ) )
+				return;
+
+			if( !reload )
+				FlatAnimatedLafChange.showSnapshot();
+
+			try {
+				UIManager.setLookAndFeel( themeInfo.lafClassName );
+			} catch( Exception ex ) {
+				LoggingFacade.INSTANCE.logSevere( null, ex );
+				showInformationDialog( "Failed to create '" + themeInfo.lafClassName + "'.", ex );
+			}
+		} else if( themeInfo.themeFile != null ) {
+			if( !reload )
+				FlatAnimatedLafChange.showSnapshot();
+
+			try {
+				if( themeInfo.themeFile.getName().endsWith( ".properties" ) )
+				    FlatLaf.setup( new FlatPropertiesLaf( themeInfo.name, themeInfo.themeFile ) );
+				else
+				    FlatLaf.setup( IntelliJTheme.createLaf( new FileInputStream( themeInfo.themeFile ) ) );
+
+				DemoPrefs.getState().put( DemoPrefs.KEY_LAF_THEME_FILE, themeInfo.themeFile.getAbsolutePath() );
+			} catch( Exception ex ) {
+				LoggingFacade.INSTANCE.logSevere( null, ex );
+				showInformationDialog( "Failed to load '" + themeInfo.themeFile + "'.", ex );
+			}
+		} else {
+			JOptionPane.showMessageDialog( SwingUtilities.windowForComponent( this ),
+				"Missing lafClassName for '" + themeInfo.name + "'",
+				"FlatLaf", JOptionPane.INFORMATION_MESSAGE );
+			return;
+		}
+
+		// update all components
+		FlatLaf.updateUI();
+
+		if( !reload )
+			FlatAnimatedLafChange.hideSnapshotWithAnimation();
+	}
+
+	private void browsePlugin() {
+		IJThemeInfo themeInfo = themesList.getSelectedValue();
+		if( themeInfo == null || themeInfo.pluginUrl == null )
+			return;
+
+		browse( themeInfo.pluginUrl );
+	}
+
+	private void browseSourceCode() {
+		IJThemeInfo themeInfo = themesList.getSelectedValue();
+		if( themeInfo == null || themeInfo.sourceCodeUrl == null )
+			return;
+
+		String themeUrl = themeInfo.sourceCodeUrl;
+		if( themeInfo.sourceCodePath != null )
+			themeUrl += '/' + themeInfo.sourceCodePath;
+		browse( themeUrl );
+	}
+
+	private void browse( String url ) {
+		url = url.replace( " ", "%20" );
+		try {
+			Desktop.getDesktop().browse( new URI( url ) );
+		} catch( IOException | URISyntaxException ex ) {
+			showInformationDialog( "Failed to browse '" + url + "'.", ex );
+		}
+	}
+
+	private void showInformationDialog( String message, Exception ex ) {
+		JOptionPane.showMessageDialog( SwingUtilities.windowForComponent( this ),
+			message + "\n\n" + ex.getMessage(),
+			"FlatLaf", JOptionPane.INFORMATION_MESSAGE );
+	}
+
+	@Override
+	public void addNotify() {
+		super.addNotify();
+
+		selectedCurrentLookAndFeel();
+		UIManager.addPropertyChangeListener( lafListener );
+
+		window = SwingUtilities.windowForComponent( this );
+		if( window != null )
+			window.addWindowListener( windowListener );
+	}
+
+	@Override
+	public void removeNotify() {
+		super.removeNotify();
+
+		UIManager.removePropertyChangeListener( lafListener );
+
+		if( window != null ) {
+			window.removeWindowListener( windowListener );
+			window = null;
+		}
+	}
+
+	private void lafChanged( PropertyChangeEvent e ) {
+		if( "lookAndFeel".equals( e.getPropertyName() ) ) {
+			// use invokeLater() because KEY_LAF_THEME_FILE is updated after this event
+			EventQueue.invokeLater( () -> {
+				selectedCurrentLookAndFeel();
+				lastLafChangeTime = System.currentTimeMillis();
+			} );
+		}
+	}
+
+	private void windowActivated() {
+		// refresh themes list on window activation
+		if( themesManager.hasThemesFromDirectoryChanged() )
+			updateThemesList();
+		else {
+			// check whether core .properties files of current Laf have changed
+			// in development environment since last Laf change and reload theme
+			LookAndFeel laf = UIManager.getLookAndFeel();
+			if( laf instanceof FlatLaf ) {
+				List<Class<?>> lafClasses = new ArrayList<>();
+
+				// same as in UIDefaultsLoader.getLafClassesForDefaultsLoading()
+				for( Class<?> lafClass = laf.getClass();
+					FlatLaf.class.isAssignableFrom( lafClass );
+					lafClass = lafClass.getSuperclass() )
+				{
+					lafClasses.add( 0, lafClass );
+				}
+
+				// same as in IntelliJTheme.ThemeLaf.getLafClassesForDefaultsLoading()
+				if( laf instanceof IntelliJTheme.ThemeLaf ) {
+					boolean dark = ((FlatLaf)laf).isDark();
+					lafClasses.add( 1, dark ? FlatDarkLaf.class : FlatLightLaf.class );
+					lafClasses.add( 2, dark ? FlatDarculaLaf.class : FlatIntelliJLaf.class );
+				}
+
+				boolean reload = false;
+				for( Class<?> lafClass : lafClasses ) {
+					String propertiesName = '/' + lafClass.getName().replace( '.', '/' ) + ".properties";
+					URL url = lafClass.getResource( propertiesName );
+					if( url != null && "file".equals( url.getProtocol() ) ) {
+						try {
+							File file = new File( url.toURI() );
+							if( file.lastModified() > lastLafChangeTime ) {
+								reload = true;
+								break;
+							}
+						} catch( URISyntaxException ex ) {
+							// ignore
+						}
+					}
+				}
+
+				if( reload )
+					setTheme( themesList.getSelectedValue(), true );
+			}
+		}
+	}
+
+	private void selectedCurrentLookAndFeel() {
+		Predicate<IJThemeInfo> test;
+		String lafClassName = UIManager.getLookAndFeel().getClass().getName();
+		if( FlatPropertiesLaf.class.getName().equals( lafClassName ) ||
+			IntelliJTheme.ThemeLaf.class.getName().equals( lafClassName ) )
+		{
+			String themeFileName = DemoPrefs.getState().get( DemoPrefs.KEY_LAF_THEME_FILE, "" );
+			if( themeFileName == null )
+				return;
+
+			File themeFile = new File( themeFileName );
+			test = ti -> Objects.equals( ti.themeFile, themeFile );
+		} else
+			test = ti -> Objects.equals( ti.lafClassName, lafClassName );
+
+		int newSel = -1;
+		for( int i = 0; i < themes.size(); i++ ) {
+			if( test.test( themes.get( i ) ) ) {
+				newSel = i;
+				break;
+			}
+		}
+
+		isAdjustingThemesList = true;
+		if( newSel >= 0 ) {
+			if( newSel != themesList.getSelectedIndex() )
+				themesList.setSelectedIndex( newSel );
+		} else
+			themesList.clearSelection();
+		isAdjustingThemesList = false;
+	}
+
+	private void filterChanged() {
+		updateThemesList();
+	}
+
+	private void initComponents() {
+		// JFormDesigner - Component initialization - DO NOT MODIFY  //GEN-BEGIN:initComponents
+		JLabel themesLabel = new JLabel();
+		toolBar = new JToolBar();
+		pluginButton = new JButton();
+		sourceCodeButton = new JButton();
+		filterComboBox = new JComboBox<>();
+		themesScrollPane = new JScrollPane();
+		themesList = new JList<>();
+
+		//======== this ========
+		setLayout(new MigLayout(
+			"insets dialog,hidemode 3",
+			// columns
+			"[grow,fill]",
+			// rows
+			"[]3" +
+			"[grow,fill]"));
+
+		//---- themesLabel ----
+		themesLabel.setText("Themes:");
+		add(themesLabel, "cell 0 0");
+
+		//======== toolBar ========
+		{
+			toolBar.setFloatable(false);
+
+			//---- pluginButton ----
+			pluginButton.setToolTipText("Opens the IntelliJ plugin page of selected IntelliJ theme in the browser.");
+			pluginButton.setIcon(new FlatSVGIcon("com/formdev/flatlaf/demo/icons/plugin.svg"));
+			pluginButton.addActionListener(e -> browsePlugin());
+			toolBar.add(pluginButton);
+
+			//---- sourceCodeButton ----
+			sourceCodeButton.setToolTipText("Opens the source code repository of selected IntelliJ theme in the browser.");
+			sourceCodeButton.setIcon(new FlatSVGIcon("com/formdev/flatlaf/demo/icons/github.svg"));
+			sourceCodeButton.addActionListener(e -> browseSourceCode());
+			toolBar.add(sourceCodeButton);
+		}
+		add(toolBar, "cell 0 0,alignx right,growx 0");
+
+		//---- filterComboBox ----
+		filterComboBox.setModel(new DefaultComboBoxModel<>(new String[] {
+			"all",
+			"light",
+			"dark"
+		}));
+		filterComboBox.putClientProperty(FlatClientProperties.MINIMUM_WIDTH, 0);
+		filterComboBox.setFocusable(false);
+		filterComboBox.addActionListener(e -> filterChanged());
+		add(filterComboBox, "cell 0 0,alignx right,growx 0");
+
+		//======== themesScrollPane ========
+		{
+
+			//---- themesList ----
+			themesList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+			themesList.addListSelectionListener(e -> themesListValueChanged(e));
+			themesScrollPane.setViewportView(themesList);
+		}
+		add(themesScrollPane, "cell 0 1");
+		// JFormDesigner - End of component initialization  //GEN-END:initComponents
+	}
+
+	// JFormDesigner - Variables declaration - DO NOT MODIFY  //GEN-BEGIN:variables
+	private JToolBar toolBar;
+	private JButton pluginButton;
+	private JButton sourceCodeButton;
+	private JComboBox<String> filterComboBox;
+	private JScrollPane themesScrollPane;
+	private JList<IJThemeInfo> themesList;
+	// JFormDesigner - End of variables declaration  //GEN-END:variables
+}
diff --git a/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesPanel.jfd b/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesPanel.jfd
new file mode 100644
index 0000000..a3c3d0e
--- /dev/null
+++ b/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesPanel.jfd
@@ -0,0 +1,71 @@
+JFDML JFormDesigner: "8.3" encoding: "UTF-8"
+
+new FormModel {
+	contentType: "form/swing"
+	root: new FormRoot {
+		add( new FormContainer( "javax.swing.JPanel", new FormLayoutManager( class net.miginfocom.swing.MigLayout ) {
+			"$layoutConstraints": "insets dialog,hidemode 3"
+			"$columnConstraints": "[grow,fill]"
+			"$rowConstraints": "[]3[grow,fill]"
+		} ) {
+			name: "this"
+			add( new FormComponent( "javax.swing.JLabel" ) {
+				name: "themesLabel"
+				"text": "Themes:"
+				auxiliary() {
+					"JavaCodeGenerator.variableLocal": true
+				}
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 0"
+			} )
+			add( new FormContainer( "javax.swing.JToolBar", new FormLayoutManager( class javax.swing.JToolBar ) ) {
+				name: "toolBar"
+				"floatable": false
+				add( new FormComponent( "javax.swing.JButton" ) {
+					name: "pluginButton"
+					"toolTipText": "Opens the IntelliJ plugin page of selected IntelliJ theme in the browser."
+					"icon": new com.jformdesigner.model.SwingIcon( 0, "/com/formdev/flatlaf/demo/icons/plugin.svg" )
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "browsePlugin", false ) )
+				} )
+				add( new FormComponent( "javax.swing.JButton" ) {
+					name: "sourceCodeButton"
+					"toolTipText": "Opens the source code repository of selected IntelliJ theme in the browser."
+					"icon": new com.jformdesigner.model.SwingIcon( 0, "/com/formdev/flatlaf/demo/icons/github.svg" )
+					addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "browseSourceCode", false ) )
+				} )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 0,alignx right,growx 0"
+			} )
+			add( new FormComponent( "javax.swing.JComboBox" ) {
+				name: "filterComboBox"
+				"model": new javax.swing.DefaultComboBoxModel {
+					selectedItem: "all"
+					addElement( "all" )
+					addElement( "light" )
+					addElement( "dark" )
+				}
+				"$client.JComponent.minimumWidth": 0
+				"focusable": false
+				addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "filterChanged", false ) )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 0,alignx right,growx 0"
+			} )
+			add( new FormContainer( "javax.swing.JScrollPane", new FormLayoutManager( class javax.swing.JScrollPane ) ) {
+				name: "themesScrollPane"
+				add( new FormComponent( "javax.swing.JList" ) {
+					name: "themesList"
+					"selectionMode": 0
+					auxiliary() {
+						"JavaCodeGenerator.typeParameters": "IJThemeInfo"
+					}
+					addEvent( new FormEvent( "javax.swing.event.ListSelectionListener", "valueChanged", "themesListValueChanged", true ) )
+				} )
+			}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+				"value": "cell 0 1"
+			} )
+		}, new FormLayoutConstraints( null ) {
+			"location": new java.awt.Point( 0, 0 )
+			"size": new java.awt.Dimension( 400, 300 )
+		} )
+	}
+}
diff --git a/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesUpdater.java b/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesUpdater.java
new file mode 100644
index 0000000..70e4680
--- /dev/null
+++ b/src/main/java/com/formdev/flatlaf/intellijthemes/IJThemesUpdater.java
@@ -0,0 +1,73 @@
+/*
+ * 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.intellijthemes;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+import com.formdev.flatlaf.util.LoggingFacade;
+
+/**
+ * This tool updates all IntelliJ themes listed in themes.json by downloading
+ * them from the source code repositories.
+ *
+ * @author Karl Tauber
+ */
+public class IJThemesUpdater
+{
+	public static void main( String[] args ) {
+		IJThemesManager themesManager = new IJThemesManager();
+		themesManager.loadBundledThemes();
+
+		for( IJThemeInfo ti : themesManager.bundledThemes ) {
+			if( ti.discontinued )
+				continue;
+
+			if( ti.sourceCodeUrl == null || ti.sourceCodePath == null ) {
+				System.out.println( "    " + ti.name + " NOT downloaded. Needs manual update from release on JetBrains Plugin portal." );
+				continue;
+			}
+
+			String fromUrl = ti.sourceCodeUrl + "/" + ti.sourceCodePath;
+			if( fromUrl.contains( "github.com" ) )
+				fromUrl += "?raw=true";
+			else if( fromUrl.contains( "gitlab.com" ) )
+				fromUrl = fromUrl.replace( "/blob/", "/raw/" );
+
+			String toPath = "../flatlaf-intellij-themes/src/main/resources" + IJThemesPanel.THEMES_PACKAGE + ti.resourceName;
+
+			download( fromUrl, toPath );
+		}
+	}
+
+	private static void download( String fromUrl, String toPath ) {
+		System.out.println( "Download " + fromUrl );
+
+		Path out = new File( toPath ).toPath();
+		try {
+			URL url = new URL( fromUrl.replace( " ", "%20" ) );
+			URLConnection con = url.openConnection();
+			Files.copy( con.getInputStream(), out, StandardCopyOption.REPLACE_EXISTING );
+		} catch( IOException ex ) {
+			LoggingFacade.INSTANCE.logSevere( null, ex );
+		}
+	}
+}