title: Custom Style format color not shown in the format selector
body: <p>When selecting the format, the word in the editor's color is changed. Functionality is working fine. All the selector are shown and also applied on selected.</p>
  
  <p>But  the color of the selector also need to be different according to the color it is going to set. It is shown in tinymce example. <a href="http://www.tinymce.com/tryit/custom_formats.php" rel="nofollow noreferrer">http://www.tinymce.com/tryit/custom_formats.php</a> here the selectors are red.</p>
  
  <p>Code i have used is:</p>
  
  <pre><code>$color = array(
          'title' =&gt; "Light Grey",
          'inline' =&gt; 'span',
        'styles' =&gt; array('color'=&gt;'#232323'),
        'wrapper' =&gt; false,
          );
  </code></pre>
  
  <p>It is just showing all black in selector. But it is working fine in the texts in editor. The color are changed after selecting the format.</p>
  
  <p><img src="https://i.stack.imgur.com/eA6Kd.png" alt="enter image description here"></p>
  
  <p>Wrapping code is as follows:</p>
  
  <pre><code>    function atg_mce_buttons_2( $buttons ) 
    {
      array_unshift( $buttons, 'styleselect' );
      array_unshift( $buttons, 'fontsizeselect' );
      return $buttons;
    }
  
    function atg_mce_before_init( $settings ) 
    {
  
  
      $style_formats = array(
  
        array(
          'title' =&gt; 'Content Heading',
          'block' =&gt; 'h2',
          'classes' =&gt; 'h2'
          ),
        array(
          'title' =&gt; 'Content Sub Heading',
          'block' =&gt; 'h5',
          'classes' =&gt; 'h5'
          ),
        array(
          'title' =&gt; 'Paragraph',
          'block' =&gt; 'p'
          ),
        array(
              'title' =&gt; 'Red Uppercase Text',
              'inline' =&gt; 'span',
              'styles' =&gt; array(
                  'color'         =&gt; 'red', // or hex value #ff0000
                  'fontWeight'    =&gt; 'bold',
                  'textTransform' =&gt; 'uppercase'
              )
          )
  
        );
      $settings['style_formats'] = json_encode( $style_formats );
  
          return $settings;
        }
      add_filter( 'tiny_mce_before_init',  array(&amp;$this,'atg_mce_before_init' ));
      add_filter( 'mce_buttons_2',  array(&amp;$this,'atg_mce_buttons_2' ));
  </code></pre>