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.setFont(sansSerifBold(20));
  FontMetrics fm = g.getFontMetrics();
  int h = fm.getHeight();
  int y = p.y+thoughtCircleSize(img)/2+drawThoughtCircleText_margin;
  for (S s : lines(text)) {
    drawTextWithOutline(g, s, p.x-fm.stringWidth(s)/2, y+fm.getLeading()+fm.getMaxAscent(), drawThoughtCircleText_color, Color.black);
    y += h;
  }
  g.dispose();
}