I am working on a project where I have to draw some overhead landscape. I have been trying to draw some areas that look as though they are depressions. I have drawn an area that will look like grass. Then I draw a smaller area on top of the grass to and shade it with a darker color of green to make it look like a depression. What I would like to do is to blend the edges of the shaded area into the green area. I have tried to do this with the feather option but have had no luck so far. If anyone out there knows how to do something like this, I would appreciate some help. Thanks.