ASP.Net Creating Dynamic Images

I got the following tutorial for creating dynamic images from sitepoint and simply changed jpeg to gif. FillRectangle gives you a standard rectangle.

Does ASP.Net does have the following similar features as Adobe Fireworks:
Can you make a rounded rectangle?
Can you specify a matte?
Can you specify that you want that part of the button that doesn’t have color to be transparent?
Can you have a bevel and emboss effect to make a button have depth?

If any of these things are possible, how would they be done? Can you recommend a tutorial or a book that would help?

Thanks,

Robin
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[code]
<%@ Page Language="VB" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Text" %>
<%@ Import Namespace="System.Drawing.Imaging" %>

<script language="VB" runat="server">

Sub Page_Load(sender As Object, e As EventArgs)

If Page.IsPostBack Then

Dim oBitmap As Bitmap = New Bitmap(468, 60)
Dim oGraphic As Graphics = Graphics.FromImage(oBitmap)
Dim oColor As System.Drawing.Color

Dim sColor As String = Request("BackgroundColor")
Dim sText As String = Request("Text")
Dim sFont As String = Request("Font")

Select Case sColor
Case "red"
oColor = Color.Red
Case "green"
oColor = Color.Green
Case "navy"
oColor = Color.Navy
Case "orange"
oColor = Color.Orange
Case Else
oColor = Color.Gray
End Select

Dim oBrush As New SolidBrush(oColor)
Dim oBrushWrite As New SolidBrush(Color.White)

oGraphic.FillRectangle(oBrush, 0, 0, 468, 60)
oGraphic.TextRenderingHint = TextRenderingHint.AntiAlias

Dim oFont As New Font(sFont, 13)
Dim oPoint As New PointF(5F, 5F)

oGraphic.DrawString(sText, oFont, oBrushWrite, oPoint)


'Response.ContentType = "image/gif"
'oBitmap.Save (Response.OutputStream, ImageFormat.gif)

oBitmap.Save(Server.MapPath("gen_img.gif"), ImageFormat.gif)

Response.Write("View the generated image <a target=""_blank"" href=""gen_img.gif"">here</a>")

End If



End Sub

</script>

<form runat="server">
<asp:TextBox runat="server" id="Text" />

<br><br>

<asp:dropdownlist runat="server" id="BackgroundColor">
<asp:ListItem Value="red">Red</asp:ListItem>
<asp:ListItem Value="green">Green</asp:ListItem>
<asp:ListItem Value="navy">Navy</asp:ListItem>
<asp:ListItem Value="orange">Orange</asp:ListItem>
</asp:dropdownlist>

<asp:dropdownlist runat="server" id="Font">
+ <asp:ListItem Value="Arial">Arial</asp:ListItem>
<asp:ListItem Value="Verdana">Verdana</asp:ListItem>
<asp:ListItem Value="Courier">Courier</asp:ListItem>
<asp:ListItem Value="Times New Roman">Times New Roman</asp:ListItem>
</asp:dropdownlist>

<br><br>

<asp:Button runat="Server" id="SubmitButton" Text="Generate Image" />


</form>
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