hey i need help!! Could someone explain to me how I install the Custom Username Icon add-on and how do I use it and put the icon in the username and if possible I would also like to learn how to customize the username in css in that way that you can put the brightness and the color

What is username icon in your understanding? Add screenshot to your reply.

Edited 25 августа, 20231 yr by Zero108

Install this app in ACP -> Applications:

 

thank you friend! could you help me how to put this glow effect and this color in groups of users, or even on behalf of users