3 A direction handle is used to control the shape and angle of a Bezier curve.
4 An open mask can be used to control effects or the placement of text; it does not define a
region of transparency. A closed mask defines a region that will affect the alpha channel of a
layer.
5 The Mask Feather tool lets you vary the width of feathering at different points on a mask. With
the Mask Feather tool, click to add a Feather point, and then drag it.