Great software, but just having a small problem here with the Open menu crashing my Linux box:
Formatext: java.lang.NullPointerException: Cannot invoke "String.startsWith(String)" because "platName" is null at java.desktop/sun.awt.X11FontManager.getFileNameFromPlatformName(X11FontManager.java:161) at java.desktop/sun.font.SunFontManager.initCompositeFonts(SunFontManager.java:3102) at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:445) at java.desktop/sun.font.SunFontManager$2.run(SunFontManager.java:309) at java.base/java.security.AccessController.doPrivileged(AccessController.java:319) at java.desktop/sun.font.SunFontManager.<init>(SunFontManager.java:309) at java.desktop/sun.awt.FcFontManager.<init>(FcFontManager.java:35) at java.desktop/sun.awt.X11FontManager.<init>(X11FontManager.java:55) at java.desktop/sun.font.PlatformFontInfo.createFontManager(PlatformFontInfo.java:37) at java.desktop/sun.font.FontManagerFactory.getInstance(FontManagerFactory.java:51) at java.desktop/sun.font.SunFontManager.getInstance(SunFontManager.java:242) at java.desktop/sun.font.FontDesignMetrics.getMetrics(FontDesignMetrics.java:260) at java.desktop/sun.swing.SwingUtilities2.getFontMetrics(SwingUtilities2.java:1242) at java.desktop/javax.swing.JComponent.getFontMetrics(JComponent.java:1700) at java.desktop/javax.swing.plaf.basic.BasicLabelUI.getPreferredSize(BasicLabelUI.java:251) at java.desktop/javax.swing.JComponent.getPreferredSize(JComponent.java:1734) at java.desktop/javax.swing.plaf.basic.BasicListUI.updateLayoutState(BasicListUI.java:1446) at java.desktop/javax.swing.plaf.basic.BasicListUI.maybeUpdateLayoutState(BasicListUI.java:1394) at java.desktop/javax.swing.plaf.basic.BasicListUI$Handler.valueChanged(BasicListUI.java:2815) at java.desktop/javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:231) at java.desktop/javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:206) at java.desktop/javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:258) at java.desktop/javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:459) at java.desktop/javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:469) at java.desktop/javax.swing.DefaultListSelectionModel.setSelectionInterval(DefaultListSelectionModel.java:513) at java.desktop/javax.swing.JList.setSelectedIndex(JList.java:2232) at java.desktop/javax.swing.plaf.basic.BasicComboPopup.setListSelection(BasicComboPopup.java:1281) at java.desktop/javax.swing.plaf.basic.BasicComboPopup$Handler.itemStateChanged(BasicComboPopup.java:1097) at java.desktop/javax.swing.JComboBox.fireItemStateChanged(JComboBox.java:1257) at java.desktop/javax.swing.JComboBox.selectedItemChanged(JComboBox.java:1318) at java.desktop/javax.swing.JComboBox.contentsChanged(JComboBox.java:1365) at java.desktop/javax.swing.AbstractListModel.fireContentsChanged(AbstractListModel.java:127) at java.desktop/javax.swing.plaf.metal.MetalFileChooserUI$FilterComboBoxModel.propertyChange(MetalFileChooserUI.java:1187) at java.desktop/java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:343) at java.desktop/java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:335) at java.desktop/java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:268) at java.desktop/java.awt.Component.firePropertyChange(Component.java:8717) at java.desktop/javax.swing.JFileChooser.setFileFilter(JFileChooser.java:1477) at java.desktop/javax.swing.JFileChooser.addChoosableFileFilter(JFileChooser.java:1151) at java.desktop/javax.swing.JFileChooser.updateUI(JFileChooser.java:1844) at java.desktop/javax.swing.JFileChooser.setup(JFileChooser.java:397) at java.desktop/javax.swing.JFileChooser.<init>(JFileChooser.java:376) at java.desktop/javax.swing.JFileChooser.<init>(JFileChooser.java:325) at multipaint.fileselector(multipaint.java:17673) at multipaint.gui_stuff(multipaint.java:13667) at multipaint.draw(multipaint.java:434) at processing.core.PApplet.handleDraw(PApplet.java:2094) at processing.awt.PSurfaceAWT$9.callDraw(PSurfaceAWT.java:1386) at processing.core.PSurfaceNone$AnimationThread.run(PSurfaceNone.java:356)</init></init></init></init></init>