ASP.NET - How to use theme and skin in Panel

How to use theme and skin in Panel control
PanelTheme.aspx
<%@ Page Language="C#" Theme="Panel" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>How to use theme and skin in Panel control</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h2 style="color:Navy; font-style:italic;">Panel Example: Theme and Skin</h2>
        <asp:Panel 
             ID="Panel1"
             runat="server"
             >
             <br />
             Panel Theme and Skin
        </asp:Panel>
    </div>
    </form>
</body>
</html>
Panel.skin
<asp:Panel 
     runat="server"
     Height="150"
     Width="350"
     ForeColor="DeepPink"
     Font-Size="Large"
     Font-Names="Comic Sans MS"
     HorizontalAlign="Center"
     BorderWidth="3"
     BorderColor="SkyBlue"
     BackColor="AliceBlue"
     >
</asp:Panel>