title: Silverlight: how to you override part of a theme's style
body: <p>I am using themes from the Silverlight toolkit, however several of them have poor readonly textbox styles (i.e. there is no visual representation when the textbox's are readonly.</p>
  
  <p>How can I use the themes, but tweak a textbox readonly style?
  (Because I am extensivly using the dataform this can only apply when the textbox is readony)</p>