title: How to point one resource (a SolidColorBrush) at another
body: <p>I set up a load of SolidColorBrush and LinearGradientBrush resources in a ResourceDictionary. I used these as I was restyling several controls for use in our application. </p>
  
  <p>Now I have a bunch of other external brushes that I have to use for a variation on our app. These are also set up in a ReseourceDictionary.</p>
  
  <p>Is it possible to point my brush resources at the new resources in another dictionary, something  similar to the "BasedOn" attribute of Styles?</p>
  
  <p>Something like this, conceptually at least:</p>
  
  <pre><code>&lt;SolidColorBrush x:Key="MyDataGridHeaderBrush" Binding="HeaderBrushDefinedElsewhere"/&gt;
  </code></pre>
  
  <p>...or is this kind of thing not possible, in which case I have to simply go do a Find/Replace and replace all my brush names with the new brush names?</p>
  
  <p>Thanks in advance,</p>
  
  <p>AT</p>