What change occurs in a stroke when a round brush is pressed and gradually lifted?

Correct answer: It changes from broad to thin

In a round-brush press-and-lift stroke, pressing spreads the flexible bristles and increases the contact area, producing a broad mark. Gradually reducing pressure while lifting brings the bristles together toward their tip, so the mark narrows and ends in a pointed taper. This movement is useful for leaves, petals, and curved decorative forms. The stroke is not equally thick, merely a dot, or colourless.