Use TURBO mode. (Press the <Shift> key and click the Green Flag for TURBO mode).
The original sine wave project recoloured. Every second line has 135 added to its colour number. Drawing differently coloured lines alternately fools the eye into seeing a new and different colour. This technique is known as dithering. (This project uses the "set pen color to numeric value" block that only allows 200 colours, but the colours look different here).
