How to allow user to choose theme from menu?

I have seen on many discourse forum that they are allowing me to choose theme according to me.
For example in meta.discourse.org
Capture
Please tell me how to show my all installed theme to my forum user to choose their theme according to them.

This is what you’re looking for:

https://meta.discourse.org/t/allowing-user-to-select-theme/86832/4?u=johani

5 Likes