final Graphics g = Graphics.create(bitmap);
g.setBackgroundColor(Color.BLACK);
g.clear();
g.setColor(Color.ALICEBLUE);
g.fillRoundRect(10, 10, displayWidth - ROUND_RECT_WIDTH_PAD,
displayHeight - ROUND_RECT_HEIGHT_PAD, ARC_WIDTH,
ARC_HEIGHT);
g.setColor(Color.DARKGRAY);
g.drawText(Integer.toString(i), displayWidth / 2, displayHeight / 2);