hextoRgb static method
Converts a hex type String to an RGB type String.
Implementation
static String hextoRgb(String input) {
String hexColor = input;
int red = int.parse(hexColor.substring(1, 3), radix: 16);
int green = int.parse(hexColor.substring(3, 5), radix: 16);
int blue = int.parse(hexColor.substring(5, 7), radix: 16);
return "$red,$green,$blue";
}