My custom Zsh themes.

bash-centos.zsh-theme

# Default bash prompt of CentOS
# e.g. [user@host current]$

PROMPT="%{$fg_bold[green]%}[%n@%m%{$reset_color%} %{$fg_bold[white]%}%c%{$fg_bold[green]%}]%(!.#.$)%{$reset_color%} "

bash-ubuntu.zsh-theme

# Default bash prompt of Ubuntu
# e.g. user@host:~/path$

PROMPT="%{$fg_bold[green]%}%n@%m%{$reset_color%}:%{$fg_bold[blue]%}%~%{$reset_color%}%(!.#.$) "

bash.zsh-theme

# Default bash prompt of Ubuntu
# e.g. user@host:~/path$

PROMPT="%{$fg_bold[green]%}%n@%m%{$reset_color%}:%{$fg_bold[blue]%}%~%{$reset_color%}%(!.#.$) "

# Use bash-style auto title
ZSH_THEME_TERM_TAB_TITLE_IDLE="%n@%m: %~"
ZSH_THEME_TERM_TITLE_IDLE="%n@%m: %~"

robbyrussell-ascii.zsh-theme

# Modified from robbyrussell, the default theme of oh-my-zsh
# e.g. > current git:(source) x $

PROMPT="%(?:%{$fg_bold[green]%}>:%{$fg_bold[red]%}>)"
PROMPT+=' %{$fg[cyan]%}%c%{$reset_color%} $(git_prompt_info)%(!.#.$) '

ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg_bold[blue]%}git:(%{$fg[red]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%} "
ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[blue]%}) %{$fg[yellow]%}x"
ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[blue]%})"

Zsh Prompt Expansion
http://zsh.sourceforge.net/Doc/Release/Prompt-Expansion.html

Bash tips: Colors and formatting (ANSI/VT100 Control sequences)
https://misc.flogisoft.com/bash/tip_colors_and_formatting

Zsh colors
https://github.com/zsh-users/zsh/blob/master/Functions/Misc/colors