Additional options possible for a render context
Fields
optionalbackground:Null<Int>
An optional background
property to be provided to rendering,
a value of null
means no background color.
optionalantialiasing:Null<Int>
Whether to enable anti-aliasing, 0
is disabled, 2
enables
2x2 anti-aliasing or 4
enables 4x4 anti-aliasing.