TileDrawer: change bright style background color

osm_bright_bg

--- style.xml.orig	2012-05-31 15:39:50.080704580 +0200
+++ style.xml	2012-05-31 15:40:36.856701370 +0200
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Map srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs +over" bgcolor="rgb(140,182,211)">
+<Map srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs +over" bgcolor="rgb(241,238,232)">
     <Style name="line pattern style 110">
         <Rule name="rule 589">
             <Filter>(not (([tunnel]='true')) and not (([tunnel]='yes')))</Filter>