$CARETCOLOR was not to actually colour the caret, so change to root user wouldn't show in the prompt. Now both ▶ and ◀ follow $CARETCOLOR.
@@ -1,7 +1,7 @@
# AVIT ZSH Theme
PROMPT='
-$(_user_host)$(_current_dir) $(git_prompt_info) $(_ruby_version)
+$(_user_host)${_current_dir} $(git_prompt_info) $(_ruby_version)
%{$fg[$CARETCOLOR]%}▶%{$resetcolor%} '
PROMPT2='%{$fg[$CARETCOLOR]%}◀%{$reset_color%} '