colorToHex method
Implementation
String? colorToHex(Color? color) {
if (color != null) {
int r = ((color.r) * 255).round();
int g = ((color.g) * 255).round();
int b = ((color.b) * 255).round();
return '#${r.toRadixString(16).padLeft(2, '0')}'
'${g.toRadixString(16).padLeft(2, '0')}'
'${b.toRadixString(16).padLeft(2, '0')}';
}
return null;
}