From ce639c48f6cb06164e85e80c66c96fd091cab55f Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 16 Jun 2011 11:00:31 -0600
Subject: [PATCH] ...

---
 src/calibre/ebooks/oeb/stylizer.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/calibre/ebooks/oeb/stylizer.py b/src/calibre/ebooks/oeb/stylizer.py
index 5ade915e4f..67b92b5b5a 100644
--- a/src/calibre/ebooks/oeb/stylizer.py
+++ b/src/calibre/ebooks/oeb/stylizer.py
@@ -548,6 +548,7 @@ class Style(object):
                         profiles=[cssutils.profiles.Profiles.CSS_LEVEL_2])[1]
 
         if self._bgcolor is None:
+            col = None
             val = self._style.get('background-color', None)
             if val and validate_color(val):
                 col = val
@@ -569,8 +570,11 @@ class Style(object):
                                 break
                     except:
                         pass
-            self._bgcolor = col
-        return self._bgcolor
+            if col is None:
+                self._bgcolor = False
+            else:
+                self._bgcolor = col
+        return self._bgcolor if self._bgcolor else None
 
     @property
     def fontSize(self):