Allow users to select dark mode theme

[tdelmas]

It would be great if users of this forum could select a dark theme. (cf https://meta.discourse.org/t/allow-users-to-select-dark-light-theme/60857)

(it could be awesome if it was automatically selected depending of the users browser settings, but the only available solution is experimental: https://meta.discourse.org/t/dark-mode-theme-switch-for-safari-on-macos-and-ios-13/112071 )

About the advantage of a dark-mode:

• https://www.techaheadcorp.com/blog/dark-mode/
• https://uxdesign.cc/accessibility-and-dark-ui-themes-f01001339b65

But dark mode should not be the only option, the current light theme is mandatory for accessibility reason:

• https://craignicol.wordpress.com/2019/04/15/the-dark-mode-of-usability-and-accessibility/

[tdelmas]

@jsha do you have an opinion about it? (as it seams you have both the skills and the access to do it!)

[jsha]

I think dark mode support would be great! It looks like it’s a bit of work, so it may take me a little while to get to it, but I’ll give it a shot.

[tdelmas]

Awesome, thanks! (If I can help in any way…)

(also, related, dark-mode for letsencrypt.org : https://github.com/letsencrypt/website/pull/757)