Expanded RadialGradientBrush class object mode to better support radial gradients on different target platforms (such as PDF, bitmap or SVG).
Added renderers for marker, pattern, and radialGradient SVG elements.
Added GcSvgDocument.CurrentColor property which gets or sets the currentColor value used by the SVG renderer.
Added new properties to RadialGradientBrush: RadiusOfStartCircle, CenterOfStartCircle, CenterOfEndCircle, RadiusOfEndCircle, ExtendStartCircle, ExtendEndCircle and Normalize.