MyBB Community Forums

Hello guys I want to implement Color Username Rainbow Effect on my forums.

I've followed 2 tutorials and it still doesn't work.

here it is :

https://community.mybb.com/thread-119359.html

https://community.mybb.com/thread-189104.html

Anyone experienced with this? I got told it may be because of the theme I am using someone said it only works with myBB default theme.
Can someone help me?

I followed 3 tutorials and I end up like this:

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EDIT: i finally got it to work but it shows buggy in the who's online list !

You might find the following thread helpful
https://community.mybb.com/thread-119359.html