Using both Tomboy and Xpad with launchers on the desktop, the icons are identical. It seems Xpad has no emblem of its own, so it is automatically assigned the Tomboy one.
In practice, this is more annoying than confusing, but there is a quick remedy:
Right-click on the Xpad icon, select Edit Launcher, double-click on Icon to open an alphabetically arranged set of emblems to choose from. I find the pleasantly gray
text-editor-symbolic to fit Xpad rather well, being properly distinguished from the yellow Tomboy launcher in its vicinity.
