More recent versions of Microsoft Office can insert scalable vector graphics (SVG) files. These can be converted to a "shape" and then ungrouped to allow editing of the separate parts. Office seems to be able to handle transparent backgrounds but it converts gradient fills (as in skins) to a flat colour. I have not tested it extensively with SAS output.

This might be a better option in some cases, particularly as SVG is the default format for the HTML5 destination.