Adjusted explanation about default theme.

Author: jaspermdegroot

docs/lists/lists-themes.html

@@ -25,7 +25,7 @@ <h1>Theming lists</h1>
 	<div data-role="content" class="ui-body">
 		<div class="content-primary">	
 
-		<p>All the standard button swatches can be applied to lists. The framework assigns a default list theme swatch of &quot;c&quot; (silver in the default theme) and swatch &quot;b&quot; (blue in default theme) for dividers. Below is a default themed list.</p>
+		<p>All the standard button swatches can be applied to lists. A list inherits its theme swatch from its parent page/content container. So the theme swatch defaults to &quot;c&quot; (silver in the default theme), if nothing else is set to the surrounding page/content containers. The default swatch for list dividers is &quot;b&quot; (blue in the default theme). Below is a list which inherits the default &quot;c&quot; content swatch.</p>
 
 <code>
 &lt;ul data-role=&quot;listview&quot; data-inset=&quot;true&quot;&gt;