/** Create a new {@code SwingUI}. Loads gui settings and shows the gui. */
public SwingUI() {
// Try to change the look and feel to gtk as it looks better.
GTKLookAndFeel gtk = new GTKLookAndFeel();
if (gtk.isSupportedLookAndFeel()) {
try {
Logger.info(this, "Switching to gtk look and feel.");
UIManager.setLookAndFeel(gtk);
} catch (UnsupportedLookAndFeelException e) {