# if ch is too short for you, replace it with cheat.sh
# in the function declaration and in the complete call below

ch()
{
    # replace native with the color scheme you want
    # curl cheat.sh/:styles-demo to show the available color schemes
    curl -s cheat.sh/"$1"?style=native
}

_cheatsh_complete_cheatsh() 
{
    local cur opts #prev
    _get_comp_words_by_ref -n : cur

    COMPREPLY=()
    prev="${COMP_WORDS[COMP_CWORD-1]}"
    opts="$(curl -s cheat.sh/:list)"

    #if [[ "${cur}" == ch ]] ; then
		COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
		__ltrim_colon_completions "$cur"
        return 0
    #fi  
}

complete -F _cheatsh_complete_cheatsh ch