Fixed light colors for git prompt

themes/agnoster.zsh-theme

@@ -111,7 +111,7 @@ prompt_git() {
     dirty=$(parse_git_dirty)
     ref=$(git symbolic-ref HEAD 2> /dev/null) || ref="➦ $(git rev-parse --short HEAD 2> /dev/null)"
     if [[ -n $dirty ]]; then
-      prompt_segment yellow black
+      prompt_segment yellow $CURRENT_FG
     else
       prompt_segment green $CURRENT_FG
     fi