WordPress: Change admin wp_editor background color?
<p>I'd like my user to be able to dynamically set the background color of the wp_editor on the Edit Page screen.</p>

<p>For example, I'm using the Iris color picker to let the user set a background color for their page.</p>

<p>I'd like this color to be applied to the visual editor as they are editing, so they will see what it looks like.</p>

<p>As a test, I tried modifying the editor's background color by calling: </p>

<pre><code>tinyMCE.init({
    selector: 'textarea',
    content_style: "div { background-color: #000000; }",
});
</code></pre>

<p>It didn't work.</p>