Guess Pro uses the same approach I did with the free plugin, but instead it checks if edition is Pro beforehand and only then replace the icon at publish and or runtime? If so then Conitec might as well consider to make it work for all editions. As it's already achieved so easily by either using a plugin or just hardcoding it into the script.

Furthermore, if it is true that Pro can only use 16x16 or 32x32 with 24bit colors, all of this isn't such a big feature. Would rather have option to use 32bit icons. And other sizes in power of two for use on Vista systems, but thats just personal.