I put the following in my .zshrc -autoload -Uz compinit promptinitcompinit promptinit This is also given at https://wiki.archlinux.org/index.php/Zsh#Prompt_themesWhile I'm able to cycle between the themes, am wondering where the themes are actually residing at, to read the code of individual themes. 
where are the zsh builtin prompt themes reside?
debian;zsh;prompt
Inspect the code for the promptinit function (after it has been called) to see what it runs.% which promptinit | grep path    local ppath='' name theme    for theme in $^fpath/prompt_*_setup(N)% print -l $^fpath/prompt_*_setup(N)/usr/share/zsh/5.0.8/functions/prompt_adam1_setup...