According to this page: https://wordpress.org/support/topic/custom-background-color-5/ The regular Enlighter plugin themes are stored in this minified css file: /wp-content/plugins/enlighter/resources/EnlighterJS.min.css and the css files for the Enlighter plugin themes can be found here: /wp-content/plugins/enlighter/views/themes/ for example: /wp-content/plugins/enlighter/views/themes/mootwo.css However, to create a new custom Enlighter css theme and have it show up in the Enlighter plugin options, I … Continue reading WordPress: How to make a custom Enlighter theme for code highlighting