@Eric—

If Grace and Steve decide to keep the icon file out in the open (as it were, not coded into the exe as a resource), then a transparent background could be one of several sizes and variations of the approved con design.

In Windows, an *.ico file can have different images, as GIF files can. All it takes is an editor, and icon editors are a dime a dozen.

Another thing to consider is how easily an icon with a transparent background can get lost of a Desktop of an artist who chooses color wallpaper. It's something to contend with: you can't predict who is going to use this utility and where on their system. I have a utility or two that are a PITA to find because the graphic is really small set against a clear background.

Best of all worlds might be to let the user decide what to display and this can be done with multiple icons inside one file.

My Best,

Gary