diff -r 5c40dd2cf131 -r ce86f7bb4b7b hgext3rd/topic/__init__.py
--- a/hgext3rd/topic/__init__.py	Fri Aug 26 14:23:31 2016 +0200
+++ b/hgext3rd/topic/__init__.py	Fri Aug 26 14:55:58 2016 +0200
@@ -58,6 +58,8 @@
               'topic.stack.state.current': 'cyan bold',  # random pick
               'topic.stack.desc.current': 'cyan',        # random pick
               'topic.stack.state.unstable': 'red',
+              'topic.stack.summary.behindcount': 'cyan',
+              'topic.stack.summary.behinderror': 'red',
              }
 
 testedwith = '3.9'