title: vim color is different between local and remote machine's screen
body: <p>I have two machine which share the completely same <code>.vimrc</code> and <code>colorscheme</code>. I'm working on machine <code>Local</code>. When I open <code>vim</code> in <code>Local</code>'s terminal, it looks like:</p>
  
  <p><img src="https://i.stack.imgur.com/QHs5z.png" alt="enter image description here"></p>
  
  <p>The background is dark and color is contrasting.</p>
  
  <p>Then I log in machine <code>Remote</code> through <code>ssh</code> on <code>Local</code>, and open <code>Remote</code>'s <code>vim</code> in <code>screen</code>. And then I see:</p>
  
  <p><img src="https://i.stack.imgur.com/9wuNf.png" alt="enter image description here"></p>
  
  <p>The background is grey and it looks different from <code>Local</code>'s <code>vim</code>. What happened?</p>
  
  <p><strong>EDIT</strong>: When I don't use <code>screen</code> everything works well. The ugly color only exists in <code>screen</code>.</p>