IDEA-199540: fix default list renderer to support unfocused state

platform/lang-impl/src/com/intellij/ide/fileTemplates/impl/FileTemplateTabAsList.java

@@ -21,6 +21,7 @@ import com.intellij.ide.fileTemplates.FileTemplateUtil;
 import com.intellij.ui.ListSpeedSearch;
 import com.intellij.ui.components.JBList;
 import com.intellij.util.Function;
+import com.intellij.util.ui.UIUtil;
 import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
@@ -51,7 +52,7 @@ abstract class FileTemplateTabAsList extends FileTemplateTab {
   private class MyListCellRenderer extends DefaultListCellRenderer {
     @Override
     public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
-      super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
+      super.getListCellRendererComponent(list, value, index, isSelected, false);
       Icon icon = null;
       if (value instanceof FileTemplate) {
         FileTemplate template = (FileTemplate) value;
@@ -73,6 +74,7 @@ abstract class FileTemplateTabAsList extends FileTemplateTab {
         }
       }
       setIcon(icon);
+      if (isSelected) setBackground(UIUtil.getListSelectionBackground(cellHasFocus));
       return this;
     }
   }

platform/util/src/com/intellij/util/ui/UIUtil.java

@@ -1363,6 +1363,10 @@ public class UIUtil {
     return new JBColor(UNFOCUSED_SELECTION_COLOR, new Color(13, 41, 62));
   }
 
+  public static Color getListSelectionBackground(boolean focused) {
+    return focused ? getListSelectionBackground() : getListUnfocusedSelectionBackground();
+  }
+
   public static Color getTreeSelectionBackground(boolean focused) {
     return focused ? getTreeSelectionBackground() : getTreeUnfocusedSelectionBackground();
   }