toHex method
Converts the Flutter color to a hex string.
Example:
Color color = Colors.red;
String hexString = color.toHex();
print('Hex Color: $hexString'); // Output: #FF0000
Implementation
String toHex({bool leadingHashSign = true, bool includeAlpha = false}) =>
'${leadingHashSign ? '#' : ''}'
'${includeAlpha ? alpha.toRadixString(16).padLeft(2, '0') : ''}'
'${red.toRadixString(16).padLeft(2, '0')}'
'${green.toRadixString(16).padLeft(2, '0')}'
'${blue.toRadixString(16).padLeft(2, '0')}';