Introduction

1. Copy inside ~/.oh-my-zsh/theme/

cp paxton.zsh-theme ~/.oh-my-zsh/themes/paxton.zsh-theme

2. Modify ~/.zshrc

vi .zshrc

ZSH_THEME="paxton"

3. Update configuration

source .zshrc 

How to resolve some issues with fonts

1. With integrated terminal in visual code

1.1. Get powerline font

git clone https://github.com/abertsch/Menlo-for-Powerline.git

1.2. Then move a font to your fonts folder

sudo mv Menlo*.ttf /usr/share/fonts

1.3. Update vscode configuration

2. With gnome ubuntu

sudo apt-get install fonts-powerline