Current Background FillStyle
Highlighted FillStyle of Background or undefined for auto assignment
Current Background LineStyle
Set FillStyle of Background.
Fill style object or function which modifies it
Object itself for fluent interface
Set highlighted FillStyle of Background
Object itself for fluent interface
Set stroke style of Background.
LineStyle object or function which modifies it
Object itself for fluent interface
Background that can be pointed at a direction (left,right,up or down)