CSS Custom Properties and a new look

You may have noticed that some things changed on this website. I completly re-wrote the Front-End and created a new theme with a focus on accessibility and well-structured content. On the web, Accessibility is enabled by default; All you need is a good HTML structure and your website is almost ready to go! A second important part of accessibility is color and contrast as well as font sizing. I decided to let users choose their own color scheme, font-size, and dark or light mode - all done with CSS Custom Properties (aka CSS variables).