Use Atom's One Dark syntax colors in your Jekyll
If you're in love with One Dark theme in Atom, you will get it.
Download the stylesheet files or compile a new one from any Atom syntax theme which based on One Dark (the variable names in colors.less must match with One Dark's)
npm install -g less less-plugin-clean-csscolors.css file from the syntax theme's repository (for example https://github.com/atom/one-dark-syntax/blob/master/styles/colors.less in case of One-Dark)syntax.lesslessc syntax.less syntax.css --clean-csssyntax.css