data-theme 几种值的样式

代码片段：

 <div data-role="page">
    <div data-role="header">
        <h1>The title</h1>
    </div>

    <div data-role="content">
        <a href="#" data-role="button" data-icon="star" data-theme="a">data-theme="a"</a>
        <a href="#" data-role="button" data-icon="star" data-theme="b">data-theme="b"</a>
        <a href="#" data-role="button" data-icon="star" data-theme="c">data-theme="c"</a>
        <a href="#" data-role="button" data-icon="star" data-theme="d">data-theme="d"</a>
        <a href="#" data-role="button" data-icon="star" data-theme="e">data-theme="e"</a>
    </div>

    <div data-role="footer">
        <h4>The footer</h4>
    </div>
    </div>