True North Software released
Mask-R-Aid 4.0, a tool for creating icon masks. An icon consists of an icon image and a mask that tells the system how to render the transparency of the icon.
New features in version 4.0 include the ability to export icons as icns files and selectively export items. Additionally, Mask-R-Aid now saves all images and settings to a single file.
Mask-R-Aid requires Mac OS X 10.2 or later, and sells for $15.00