<https://squaresseamless.com/the-color-theory-and-the-implementation-how-to-use-the-color-to-your-advantage-2/#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://squaresseamless.com/the-color-theory-and-the-implementation-how-to-use-the-color-to-your-advantage-2/>