From Paint Shop Pro help:

When you promote or paste a selection to create a layer, some of the pixels
surrounding the border are included, especially when it has been antialiased
or feathered. Matting cleans up the border by removing these pixels.


grey scale or 24-bit color image.

Removing Black and White Matte

When you promote a selection that contains white or black at its edges into
a layer, the edges of the layer now contain black and white pixels. If the
promoted layer is above a colored layer, the white or black needs to be
removed using the following method:





Defringing a Layer

Defringing bleeds non-feathered pixels in the layer edges outward and over
the "jaggies" in the feathered part of the selection. Use the Defringe
command when the background of a layer is a color (not black or white).

To defringe a layer:

1 Choose Layers > Matting > Defringe. The Defringe dialog box opens.

2 Enter the pixel width you want to defringe.

3 Click OK to close the dialog box defringe the layer.


Jim

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