If a template provides a haml file, it can have compass-enabled sass filters within it.

lib/compass/frameworks/blueprint/templates/project/welcome.html.haml

@@ -7,7 +7,12 @@
     %link(href="<%= http_stylesheets_path %>/print.css" media="print" rel="stylesheet" type="text/css")
     /[if lt IE 8]
       %link(href="<%= http_stylesheets_path %>/ie.css" media="screen, projection" rel="stylesheet" type="text/css")    
+    %style(type="text/css")
+      :sass
+        @import blueprint.sass
+        .foo
+          +column(8)
   %body#welcome.bp
     #container
       %h1 Welcome to Compass!
-      %p This is <%= "ERB" %>
+      %p This is <%= "ERB" %>

lib/compass/installers/base.rb

@@ -112,6 +112,7 @@ module Compass
             ctx = TemplateContext.ctx(:to => to, :options => options)
             contents = process_erb(contents, ctx)
           end
+          Compass.configure_sass_plugin!
           html = Haml::Engine.new(contents, :filename => templatize(from)).render
           write_file(targetize(to), html, options)
         else