You can change the color of the drawings.
Example
Below is an example of a color drawing.
In grayscale mode, the colors from 1 to 7 (black, red, green, blue, cyan, yellow, magenta) are shown in black, and the colors from 8 to 14 (brown, dark green, dark blue, blue-green, orange, gray) are shown in different shades of gray. Below is an example of a gray scale drawing.
Below is an example of a black-and-white drawing.