How to disable selection highlight of a toggletool in gui?

How can I prevent a toggletool in my gui's menu from showing it's selection highlight, regardless of it's status? I've already tried turning SelectionHighligt property of the tool off in the opening function and also in it's callback function. thanks

Answer 1

[Jan]

Without changing its color, the user will not recognize a state change. Then a pushtool seems to be more user-friendly.

[hana]

I know, but I am changing the icon as the state of the tool changes and don't need the selection highlight .. & the reason I wand to get rid of it, is that it's not undoing itself when the gui is generated without closing the last session!