Under the Windows Look & Feel, most icons in the javax.swing.JFileChooser are not scaled properly. This applies both to the icons of shown files and icons shown as part of the UI (one-up, new folder, display mode).
Further, the panel on the left (Recent, Desktop, Documents, ...) is scaled in such a way that the labels aren't fully visible. See attached screenshots.

The problem occurs only with Windows Look & Feel, but with Windows 7, Windows 8.1, Windows 10 (those are the ones I tested).

Steps to reproduce: Run this code:
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import javax.swing.*;
import java.awt.*;

public class JFileChooserTest {

    public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        } catch (Exception e) {
            e.printStackTrace();
        }

        SwingUtilities.invokeLater(() -> {
            final JFrame frame = new JFrame();
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setLayout(new BorderLayout());
            final JButton open = new JButton("Open");
            frame.add(open);
            open.addActionListener(l -> {
                final JFileChooser chooser = new JFileChooser();
                chooser.showOpenDialog(frame);
            });
            frame.setBounds(200, 200, 200, 200);
            frame.setVisible(true);
        });
    }
}
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