Fixed FileChooser filter popup hard to read.

core/src/main/java/com/github/weisj/darklaf/ui/filechooser/DarkFileChooserUI.java

@@ -289,8 +289,7 @@ public class DarkFileChooserUI extends DarkFileChooserUIBridge {
                 filterComboBox.setEnabled(filterComboBox.getItemCount() > 1);
             }
         });
-        filterComboBox.putClientProperty(AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY,
-                                         filesOfTypeLabelText);
+        filterComboBox.putClientProperty(AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY, filesOfTypeLabelText);
         filesOfTypeLabel.setLabelFor(filterComboBox);
         filterComboBox.setRenderer(createFilterComboBoxRenderer());
         filesOfTypePanel.add(filterComboBox);
@@ -318,6 +317,11 @@ public class DarkFileChooserUI extends DarkFileChooserUIBridge {
         groupLabels(new AlignedLabel[]{fileNameLabel, filesOfTypeLabel});
     }
 
+    @Override
+    protected ListCellRenderer<Object> createFilterComboBoxRenderer() {
+        return new DarkFilterComboBoxRenderer();
+    }
+
     protected static class DarkButtonAreaLayout extends ButtonAreaLayout {
 
         protected DarkButtonAreaLayout() {

core/src/main/java/com/github/weisj/darklaf/ui/filechooser/DarkFileChooserUIBridge.java

@@ -785,7 +785,7 @@ public class DarkFileChooserUIBridge extends BasicFileChooserUI {
      *
      * @return a {@code Renderer} for types {@code ComboBox}
      */
-    protected FilterComboBoxRenderer createFilterComboBoxRenderer() {
+    protected ListCellRenderer<Object> createFilterComboBoxRenderer() {
         return new FilterComboBoxRenderer();
     }
 

core/src/main/java/com/github/weisj/darklaf/ui/filechooser/DarkFilterComboBoxRenderer.java

@@ -0,0 +1,44 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Jannis Weis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.github.weisj.darklaf.ui.filechooser;
+
+import com.github.weisj.darklaf.ui.list.DarkListCellRenderer;
+
+import javax.swing.*;
+import javax.swing.filechooser.FileFilter;
+import java.awt.*;
+
+public class DarkFilterComboBoxRenderer extends DarkListCellRenderer {
+
+    public Component getListCellRendererComponent(final JList<?> list,
+                                                  final Object value, final int index, final boolean isSelected,
+                                                  final boolean cellHasFocus) {
+
+        Object val = value;
+        if (value instanceof FileFilter) {
+            val = ((FileFilter) value).getDescription();
+        }
+        return super.getListCellRendererComponent(list, val, index, isSelected, cellHasFocus);
+    }
+}

core/src/test/java/ui/fileChooser/FileChooserDemo.java

@@ -26,6 +26,7 @@ package ui.fileChooser;
 import com.github.weisj.darklaf.LafManager;
 
 import javax.swing.*;
+import javax.swing.filechooser.FileNameExtensionFilter;
 
 public final class FileChooserDemo {
 
@@ -33,6 +34,7 @@ public final class FileChooserDemo {
         SwingUtilities.invokeLater(() -> {
             LafManager.install();
             JFileChooser chooser = new JFileChooser(System.getProperty("user.home"));
+            chooser.addChoosableFileFilter(new FileNameExtensionFilter("Test Filter", ".svg"));
             chooser.setMultiSelectionEnabled(true);
             chooser.showOpenDialog(null);
         });