thickLineColor function
Implementation
int thickLineColor(Pointer<SdlRenderer> renderer, int x1, int y1, int x2,
int y2, int width, int color) {
var co = Uint32List.fromList([color]).buffer.asUint8List();
return thickLineRgba(
renderer, x1, y1, x2, y2, width, co[0], co[1], co[2], co[3]);
}