aaellipseColor function
Implementation
bool aaellipseColor(Pointer<SdlRenderer> renderer, double x, double y,
double rx, double ry, int color) {
var co = Uint32List.fromList([color]).buffer.asUint8List();
return aaellipseRgba(renderer, x, y, rx, ry, co[0], co[1], co[2], co[3]);
}