Elegant uses Solarized theme for syntax
highlighting. To replace it, copy contents of your preferred theme’s CSS style
sheet into custom.css.
Alternatively, you can replace contents of pygments.css with your theme’s
style sheet.
If you feel like experimenting with different themes then this
repository has Pygments CSS of
Vim themes. This one has Pygments
CSS of built-in styles. Do not forget to change .codehilite CSS class
identifier to .highlight. Code blocks in Pelican generated HTML use
.highlight class.