4th theme renamed

__init__.py

     ('clear-red', 'Clear Red'),
     ('clear-green', 'Clear Green'),
     ('clear-blue', 'Clear Blue'),
-    ('clear-digits', 'Clear Digits'),
+    ('clear-teal', 'Clear Teal'),
 ]
 default_theme = 'default'
 
                 ))
         if settings.DEBUG:
             self[self.BOTTOMBAR].debug = True
-            self[self.BOTTOMBAR].append(entry('bottombar-w3-validator', _('W3-Validator'), None, 'https://validator.w3.org/nu/?doc=' + request.build_absolute_uri(), False, False))
+            self[self.BOTTOMBAR].append(entry('bottombar-w3-validator', _('W3-Validator'), None,
+                                        'https://validator.w3.org/nu/?doc=' + request.build_absolute_uri(), False, False))
 
     def set_additional_title(self, at):
         if self[self.SETTINGS].page_title and at: