Layer effect commands

These commands can be used to define layer effects, such as drop shadow or glow effects. Effect layers ignore all other commands.

blendMode	Specifies the layer blend mode.
color	Specifies the principal effect color and opacity.
effect	Starts the effect layer segment and specifies z-order.
maskUse	Specifies how to use the parent's layer mask (alpha channel).
op_blur	Feathers the effect.
op_grow	Grows or shrinks the layer effect.
op_noise	Adds noise to the effect.
opac	Reduces the layer opacity.
pos	Positions the effect layer relative to its parent layer.