add symbol in darcs repos to match git and mercurial

themes/smt.zsh-theme

@@ -29,6 +29,7 @@ ZSH_THEME_GIT_PROMPT_SHA_AFTER="%{$reset_color%}"
 function prompt_char() {
   git branch >/dev/null 2>/dev/null && echo "%{$fg[green]%}±%{$reset_color%}" && return
   hg root >/dev/null 2>/dev/null && echo "%{$fg_bold[red]%}☿%{$reset_color%}" && return
+  darcs show repo >/dev/null 2>/dev/null && echo "%{$fg_bold[green]%}❉%{$reset_color%}" && return
   echo "%{$fg[cyan]%}◯%{$reset_color%}"
 }