How customize guest interface

Hi im Edard and I am a student.

I am studying web development and my task is to install jitsi on an ubuntu server, I already achieved that point.

Second task is to edit as much as possible the Jitsi interface, guest links, delete messages when creating conferences from the go button

I have been studying for 4 months and I do not understand much and the worst is that they are online classes due to the pandemic

somebody help me

What do you mean by edit the interface? As in change the graphics or just the words or both?

change everything to my liking is for an exam