update opaccolorstylesheet

diff --git a/en/manual.xml b/en/manual.xml
index 7f3766f..4396594 100644 (file)
--- a/en/manual.xml
+++ b/en/manual.xml
@@ -7293,6 +7293,11 @@ Choosing "not including the days the library is closed"
                 <para>This file will add a linked CSS, not replace the
                 existing default CSS.</para>
               </note></para>
+            <important>
+              <para>If using the <link linkend="opacthemes">CCSR theme</link>, this preference must
+                be set to color.css and any user generated CSS must be appended to the default
+                color.css file.</para>
+            </important>
           </section>
 
           <section id="opaccredits">