Using the Multiply mode
How to do it…
This simple recipe will show you how to change a layer mode to the Multiply mode:
In the Layer palette, click on the layer to edit (if the Layer palette is not visible, go to Window | Layer to open it).
From the top-left corner of the Layer palette, click on the drop-down menu. Next, click on the Multiply mode.
How it works...
The Multiply mode is most often used by digital artists. This is because it makes the white areas of a layer "transparent" but keeps the black areas opaque. This makes it the ideal selection for something like a scanned ink image. By setting the scanned image to Multiply, digital colors can be applied beneath the line art to finish the illustration. Multiply also makes the colors darker by combining them with the colors below them. In the preceding example, where the blue and the yellow stripes overlap, they change to a dark green color. Where the red and light purple stripes overlap, they change to a dark burgundy color.