diff -r 6e19198cbe31 -r de1cb83728f8 hgext/color.py
--- a/hgext/color.py	Fri Jun 30 03:44:45 2017 +0200
+++ b/hgext/color.py	Sat Jul 15 14:14:46 2017 +0200
@@ -18,14 +18,8 @@
 
 from __future__ import absolute_import
 
-from mercurial import color
-
 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
 # be specifying the version(s) of Mercurial they are tested with, or
 # leave the attribute unspecified.
 testedwith = 'ships-with-hg-core'
-
-def extsetup(ui):
-    # change default color config
-    color._enabledbydefault = True