title: Colorschemes not working in gvim despite working in Vim in the terminal
body: <p>I'm having the following issue: 256-color colorschemes are not working in Gvim, but they work fine in Vim on the terminal. </p>
  
  <p>This issue is happening on both my Ubuntu machine and on my Mac OSX machine. From what I've read this issue is the opposite of what most people encounter: usually GVim can deal with any colorscheme and people instead have colorscheme issues running Vim on terminals.</p>
  
  <p>I have the following .vimrc (I have a .gvimrc with nothing in it):</p>
  
  <pre><code>" For Pathogen
  execute pathogen#infect()
  
  colorscheme 256-grayvim 
  
  set shiftwidth=3
  set tabstop=3
  set expandtab
  
  set ruler
  set nu
  
  syntax on
  set nowrap
  </code></pre>
  
  <p>When I open Vim in a terminal 256-grayvim works perfectly. When I open up Gvim, 256-grayvim shows as loaded (typing <code>:colorscheme</code> returns 256-grayvim) however the colors are completely wrong - they are the default white background and black text. Furthermore, if I then type <code>:colorscheme 256-grayvim</code>, or select the colorscheme through GVim's Edit menu there is no change in colorscheme.</p>