Using the Add mode
How to do it…
This simple recipe will show you how to change a layer mode to the Add 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. Then, click on the Add mode.
How it works...
As we can see, this mode is similar to the three modes before it. It also lightens the colors on the adjusted layer and only affects the regions where there is a color on the lower layer. Because the Paper color is white, wherever the vertical stripes overlap the Paper color, they turn white as well, making them disappear.
The blue vertical strip has turned almost white over the yellow horizontal stripe, but it has become light blue over the purple stripe. The red vertical stripe has changed to a brighter yellow color where it overlaps the yellow stripe, but is now a hot pink color over the purple stripe. In this mode, the colors below the adjusted...
