Come to the dark side, we have cookies! 🍪

This release is all about fine tuning the appearance of the theme and fixing bugs. The biggest new feature is the toggle button that let's you enable the dark mode manually. Follow me to the dark side! 🌛

Thanks to @r0ckarong, @kuenzign, @bernd1995, @jpgarza93 and @TheRolfFR for helping me to make this theme more awesome!

Added

• Experimental and optional toggle to enable the dark theme manually. (#2)
  
• Support for Graphviz graphs in the dark theme (#27, #28)
• The sidebar now by default has a subtle gray background in the light theme.
  
• The opacity of the arrows in the side-nav is now configurable: --side-nav-arrow-opacity, --side-nav-arrow-hover-opacity. (#24)

Changed

• Minor changes to hyperlinks to improve their overall color consistency and appearance. Hyperlinks do now have the color --primary-color instead of --primary-dark-color.
• Improved arrow style for nav-tree, tables & file tree.
• The readability of search results in the dark theme was improved. (#15)
  

Fixed

• Graphics bug for code fragments longer than 626 lines. (#18)
• Issue with top menu dropdown sub arrows. They are now colored in the body foreground color instead of the titlebar header foreground color to allow a dark top menu. (#22)