I'd like to create a latching effect on a radial menus buttons. For example the user clicks on a radial menu item (button), the buttons style should visually remains in the "depressed/mouse-click-down" state until the user clicks the menu item again, ideally I'd also like to change the image that is associated with the button while in "depressed/latched" state as well. Can I do this with a style trigger and maybe a converter that toggles states between something like "latched"(true/false) if so any pointers on where to look.