Question How to edit the User-Legend?

Hello!
I seached in the Web, but I didn't found the right answer how to edit this. 
The first thing I want to change: 

I want to remove "Supermoderator" & "Moderator"

The second thing I want to Change is the Color of the other ranks in the Legend and the color of the usernames with that rank.

I'm quite new to web-development, so I need an explanation for newbies
Thanks a lot!

Kind Regard
DopiGFX

Chang user collors   

Use additional this code if you want to hide some ranks.
Example:

Thanks! That helped a lot... first I tought it's not working, but after empty the cache it worked! One little last question: How can I rename or add a rank? Or is there a list where I can find all those possibilities?

In principle you can rename all ranks, but also it's possible to create own ranks and own rank images.
Add rank

Yea, I know what you mean. But if I add a rank this way, it doesn't appear in the legend but thats what I want.
Lets say I want those all in the legend: Administrator, Moderator, Friend, Super User, User & Banned
Every rank below Moderator shoul only be cosmetically, so they should only be colored and nothing else.
Is it possible to do that?

Btw: Thanks for the quick help!

Kind Regards

You can't add your own ranks to the legend. You can only rename already exists rank names in the legend. If you want to change the rank names in the legend, you need language overrides.  Language Overrides

Okay nice! Thank's for your help, the language override was nearly what I was looking for!

Maybe it helps this trick to find the right strings quickly.
I saw on you screenshot you use German language.
Choose the German language for frontend and search by keyword "Supermoderator".
This code is the relevant hit:
COM_KUNENA_COLOR_GLOBAL_MODERATOR
Cut off this code to COM_KUNENA_COLOR_
Now search for Constant and enter the cutted code.

You get these results: