This is a horizontal toolbar.  Crossfades take 333 milliseconds.

There are 7 strips.
Strip 0 gives images for buttons 0,1,2,3,4,5 when their state is inactive.
Strip 1 gives images for buttons 0,1,3,4,5 when their state is active 1.
Strip 2 gives images for buttons 1,3 when their state is active 2.
Strip 3 gives images for buttons 1,3 when their state is active 3.
Strip 4 gives images for buttons 0,1,3,4,5 when their state is mouse over.
Strip 5 gives images for buttons 0,1,3,4,5 when their state is clicked.
Strip 6 gives mouse-masks for buttons 0,1,3,4,5.