import java.awt.font.*;
import java.awt.geom.*;

static JWindow screenTextOverlay(fS text, O... _) {
  ret swing(func -> JWindow {
    JPanel panel = singleColorPanel(optPar color(_, Color.WHITE));
    new JWindow w;
    w.add(panel);
    w.setAlwaysOnTop(true);
    w.setVisible(true);

    Font font = cast optPar font(_);
    if (font == null)
      font = w.getFont().deriveFont(boolPar bold(_) ? Font.BOLD : Font.PLAIN, optPar fontSize(_, 80));
    TextLayout tl = new TextLayout(text, font,
      ((Graphics2D) w.getGraphics()).getFontRenderContext());
    Rectangle2D r = tl.getBounds();
    new AffineTransform tx;
    tx.translate(0, r.getHeight());
    Shape outline = tl.getOutline(tx);
    centerWindow(w, iceil(r.getWidth()), iceil(r.getHeight()));
    w.setShape(outline);
    ret w;
  });
}

Began life as a copy of #1013349