Reference nvgFillRule
Declared in Codebot.Render.NanoVG.pas on line 480
Sets how nvgFill decides which areas are inside a path with several sub-paths, can be one of NVG_FILL_WINDING (default), NVG_FILL_NONZERO or NVG_FILL_EVENODD
procedure nvgFillRule(Ctx: PNVGcontext; Rule: Integer);