title: .vimrc file does not apply after restarting
body: <p>I am new to vim, and I want to set the default color theme to obsidian2 (I have already put it into /colors).</p>
  
  <p>In the normal mode, I enter <code>:e $MYVIMRC</code> to open the .vimrc file. </p>
  
  <p>Then I add <code>:colorscheme obsidian2</code> into the .vimrc file.</p>
  
  <p>After restarting vim, the default color theme does not change.</p>
  
  <p>Any suggestions please?</p>
  
  <p><strong>Edit:</strong> I am using MacVim.  I also tried setting the <code>$MYGVIMRC</code>, but it doesn't help.</p>