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