title: oh-my-zsh themes don't show properly (background stays white)
body: <p>I am trying to figure out why my oh-my-zsh themes don't work properly. The colors show up properly, but background stays white (with black text).  below is my /.zshrc file and current path variable:</p>
  
  <pre><code>    # Path to your oh-my-zsh configuration.
      ZSH=$HOME/.oh-my-zsh
  
      export PATH="$HOME/.rbenv/bin:$PATH"
      eval "$(rbenv init -)"
  
      # Set name of the theme to load.
      # Look in ~/.oh-my-zsh/themes/
      # Optionally, if you set this to "random", it'll load a random theme each
      # time that oh-my-zsh is loaded.
      export ZSH_THEME="robbyrussell"
  
      # Example aliases
      # alias zshconfig="mate ~/.zshrc" 
      # alias ohmyzsh="mate ~/.oh-my-zsh"
  
      # Set to this to use case-sensitive completion
      # CASE_SENSITIVE="true"
  
      # Comment this out to disable weekly auto-update checks
      # DISABLE_AUTO_UPDATE="true"
  
      # Uncomment following line if you want to disable colors in ls
      #DISABLE_LS_COLORS="true"
  
      # Uncomment following line if you want to disable autosetting terminal title.
      # DISABLE_AUTO_TITLE="true"
  
      # Uncomment following line if you want red dots to be displayed while waiting for   completion
      # COMPLETION_WAITING_DOTS="true"
  
      # Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*)
      # Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
      # Example format: plugins=(rails git textmate ruby lighthouse)
      plugins=(git rails ruby brew)
  
      source $ZSH/oh-my-zsh.sh
  
      # Customize to your needs...
      autoload -U colors
      colors
  </code></pre>
  
  <p>here is $PATH :</p>
  
  <pre><code>    ➜  ~  echo $PATH
      /Users/natascha/.rbenv/shims:/Users/natascha/.rbenv/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/git/bin:/usr/texbin
  </code></pre>
  
  <p>I am on Mac OS X 10.7.5  and installed oh-my-zsh months ago.. I  have made a post in the git issue, <a href="https://github.com/robbyrussell/oh-my-zsh/issues/929#issuecomment-11652602" rel="noreferrer">https://github.com/robbyrussell/oh-my-zsh/issues/929#issuecomment-11652602</a>, it seems to still have not been resolved? My plugins work ( i.e. i can type rails c for "rails console"). </p>
  
  <p>Thank you for any help. </p>