radius property
The radius
of this RadialSteps
as a fraction of
the shortest side of the paint box.
For example, if a RadialSteps
is painted on a box that is
100.0
pixels wide and 200.0
pixels tall, then a radius
of 1.0
will place the 1.0
stop at 100.0
pixels from the center.
Copied from RadialGradient.
Implementation
final double radius;