diff --git a/mercurial/color.py b/mercurial/color.py
--- a/mercurial/color.py
+++ b/mercurial/color.py
@@ -90,16 +90,16 @@ except ImportError:
     'branches.inactive': 'none',
     'diff.changed': 'white',
     'diff.deleted': 'red',
-    'diff.deleted.changed': 'red',
-    'diff.deleted.unchanged': 'red dim',
+    'diff.deleted.changed': 'red bold underline',
+    'diff.deleted.unchanged': 'red',
     'diff.diffline': 'bold',
     'diff.extended': 'cyan bold',
     'diff.file_a': 'red bold',
     'diff.file_b': 'green bold',
     'diff.hunk': 'magenta',
     'diff.inserted': 'green',
-    'diff.inserted.changed': 'green',
-    'diff.inserted.unchanged': 'green dim',
+    'diff.inserted.changed': 'green bold underline',
+    'diff.inserted.unchanged': 'green',
     'diff.tab': '',
     'diff.trailingwhitespace': 'bold red_background',
     'changeset.public': '',