Add preferred_image_quality preference.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@37209 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/PropertySheet/HtmlStylePreference.py

@@ -226,4 +226,10 @@ class HtmlStylePreference:
       'preference'  : 1,
       'default'     : 'large',
       'mode'        : 'w' },
+    { 'id'          : 'preferred_image_quality',
+      'description' : 'Preferred image quality.',
+      'type'        : 'float',
+      'preference'  : 1,
+      'default'     : 75.0,
+      'mode'        : 'w' },
 )