autocomplete - Change ZSH Autocompletion Highlight? -

i new zsh , i'm having little bit of trouble changing colors autocomplete function. when list comes , i'm using arrows move around options autocomplete, selected element gets different background.

i change color of selected element.

i have installed zsh , oh-my-zsh. i'm using bira theme.

;)

in .zshrc:

 zstyle ':completion:*' list-colors ${(s.:.)ls_colors}