How to have skin selection in the hamburger dropdown like THIS forum?

[awesomerobot (Kris)]

It’s actually a theme that you can add as a component to other themes. Details here:

Hamburger Theme Selector

This theme component currently only works with the Legacy sidebar setting, which is going to be discontinued. Please see Sidebar theme toggle as an alternative. Summary Hamburger Theme Selector adds a theme selector in the hamburger menu provided there is more than 1 user selectable theme. This selector works with both logged-on users and anonymous users. Repository Link https://github.com/discourse/discourse-hamburger-theme-selector …