Thanks I took inspiration from a lot of places while customizing this theme. In no particular order, the sources: https://ryanfeigenbaum.com/dark-mode/ https://docs.kenjibailly.xyz/ghost-v4-dark-mode-toggle-combined-with-cookie/ https://github.com/angristan/Casper-XYZ/ https://ghost.org/docs/tutorials/ https://visioncanary15.medium.com/migrate-your-blog-from-ghost-pro-to-digital-ocean-1f06b3e3dc92