If you want to have colourful terminal screen then you can use zsh shell and oh-my-zsh framework. Follow steps below to install it.

Install zsh

At the end of the command below, it might say ".... doesn't exist" but you can ignore it.

$ sudo apt-get install zsh

Install oh-my-zsh

$ sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"
Please look over the ~/.zshrc file to select plugins, themes, and options.

Changing themes

Find ZSH_THEME="robbyrussell" and change it with the theme you like.

$ sudo nano ~/.zshrc


If you want to switch between "bash" and "zsh" shells, all you have to do is type either $ bash or $ zsh or $ exit.