How to set Your Name in Kali Linux Terminal Header using Figlet or without figlet and Modify Terminal Look

#apt-get install figlet
after installing figlet.
now to go this website and type the desired name and choose the font according u like

now open terminal and type
#leafpad /root/.bashrc

and at the end of this file type after fi

figlet vishal
" learn hacking in vishal way "

this is simple one
                                                             or

You can try fancy fonts name from that website and simply copy the name from that website and paste after fi like this.

echo "======================================"
echo   "██╗ ██╗██╗███████╗██╗ ██╗ █████╗ ██╗ "
echo   "██║ ██║██║██╔════╝██║ ██║██╔══██╗██║ "    
echo   "██║ ██║██║███████╗██████████████║██║ "    
echo  "╚██╗ ██╝██║╚════██║██╔═██║██╔══██║██║ "    
echo  " ╚████╝ ██║███████║██║ ██║██║  ██║███████╗"
echo   " ╚═══╝ ╚═╝╚══════╝╚═╝ ╚═╝╚═╝  ╚═╝╚══════╝"
echo "==========================================="
echo "       WELCOME TO VISHAL WORLD             "
echo "==========================================="


or if u want rainblw colour text effect in termnial header

#apt install figlet && apt install toilet

and type after fi

toilet -f smmono9  "VISHAL HACKER"  --filter gay

Change Host name in kali
i.e root@kalilinux2018

start kali
open terminal
#leafpad /etc/hostname 

or
#cd /etc
#nano hostname

now here u can change kalilinux2018 to what ever you want to write and now restart the system

Add New User 

go to setting on the top right side
click on users> add users> select administrator

Change Root Password
root@kali2018# passwd
and enter the new password and confirm the new password.

and if there are more users u can see the list by this cmd.

root@kali2018# ls /home
user1    then
root@kali2018# passwd user1
and enter the new password.

Change Terminal Text Colour.

open terminal
click edit and select profiles
click new and name it as green click create 
click on colour
click on text colour and select green colour
and finally choose green profile u are done.