Set the active dash pattern of the outline. Each element represents the
number of pixels of a line segment. Only the odd segments are drawn
using the outline color. The other segments are drawn transparent. An
item's active state is triggered when the mouse rolls over the item.
Set the active dash pattern of the outline. Each element represents the number of pixels of a line segment. Only the odd segments are drawn using the outline color. The other segments are drawn transparent. An item's active state is triggered when the mouse rolls over the item.