Thanks for that ginormous essay of a reply! It could have been an article on its own. As for the colors, I had the choice of introducing named colors: `Colors.black`, `Colors.white`, etc. I chose to use hex values because for named, I'll be introducing yet another `import` to have access to the `Colors` class. Ironically I did more explanation (and fell short on it) on constructing hexadecimal colors.