I've commented [0] on some of the hidden features (changing foreground and background colors with <letter/number> and <shift + letter/number> respectively) but also to note is there's some nice ascii art in the raw source (though the main bit is cut out by HN filters): view-source:https://jacksonpollock.org

       ___                        ___                     ___           ___     
      /  /\           ___        /  /\      ___          /  /\         /  /\    
     /  /::|         /__/\      /  /:/     /__/\        /  /::\       /  /::\   
    /  /:|:|         \__\:\    /  /:/      \  \:\      /  /:/\:\     /__/:/\:\  
   /  /:/|:|__       /  /::\  /  /:/        \__\:\    /  /:/  \:\   _\_ \:\ \:\ 
  /__/:/_|::::\   __/  /:/\/ /__/:/         /  /::\  /__/:/ \__\:\ /__/\ \:\ \:\
  \__\/  /~~/:/  /__/\/:/~~  \  \:\        /  /:/\:\ \  \:\ /  /:/ \  \:\ \:\_\/
        /  /:/   \  \::/      \  \:\      /  /:/__\/  \  \:\  /:/   \  \:\_\:\  
       /  /:/     \  \:\       \  \:\    /__/:/        \  \:\/:/     \  \:\/:/  
      /__/:/       \__\/        \  \:\   \__\/          \  \::/       \  \::/   
      \__\/                      \__\/                   \__\/         \__\/

0: https://news.ycombinator.com/item?id=42987887