Add colored Git Branch information to your ZSH PROMPT

.zshrc

# Load colors, auto-completion, and version control information
autoload -Uz compinit colors vcs_info
colors
compinit
precmd() { vcs_info }

# Format the vcs_info_msg_0_ variable, see https://upload.wikimedia.org/wikipedia/commons/1/15/Xterm_256color_chart.svg for color number (replace 039 with any number you wanted)
zstyle ':vcs_info:git:*' formats '[%F{039}%b%f]'
 
# Set up the prompt (with git branch name)
setopt PROMPT_SUBST
PROMPT='%n ${PWD/#$HOME/~} ${vcs_info_msg_0_}> '