static int drawThoughtCircleText_margin = 5;
static Color drawThoughtCircleText_color = Color.yellow;

static void drawThoughtCircleText(BufferedImage bg, BufferedImage img, Pt p, S text) {
  Graphics2D g = imageGraphics(bg);
  g.setColor(drawThoughtCircleText_color);
  g.setFont(sansSerif(20));
  FontMetrics fm = g.getFontMetrics();
  int y = p.y+thoughtCircleSize(img)/2+drawThoughtCircleText_margin;
  drawTextWithOutline(g, text, p.x-fm.stringWidth(text)/2.0f, y+fm.getLeading()+fm.getMaxAscent());
  g.dispose();
}