After reading this, I created a theme color picker in a single HTML file with no libraries. It's only tested in the latest Chrome. https://gist.github.com/stev

After reading this, I created a theme color picker in a single HTML file with no libraries. It's only tested in the latest Chrome. https://gist.github.com/steve-taylor/40f54b400785258b80d4792a1b540501 https://gist.github.com/steve-taylor/40f54b400785258b80d4792...