layer.
Difference subtracts darker colors from lighter ones.
In Explorer (Windows) or the Finder (Mac), navigate to the Lessons folder you
downloaded from the peachpit.com website. Then navigate to the Lesson04 folder.
Select Flower2.psd, and drag it from Explorer or the Finder onto your image.
Tip
You can drag images from a Bridge window to Photoshop as easily as you can drag from
the Windows or Mac desktop.