Have a cursor option in the Cursor preferences menu to have an icon in minature of the tool offset from the crosshair or brush outline. This helps for those who switch between tools often (i,e, clone stamp, eraser, paint brush) to know at a glance what tool you are working with, since the appearance between all those look identical. As an option, so that this graphic doesnt get in the visible way, it may disappear when you engage with the tool by clicking and dragging, since concievably you know which tool you have engaged by that pont so no need to keep it visible. This is indicative of how capslock can change between cross hair mode and tool cursor outline mode.
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