mercurial: fix coloring for "hg qseries" command

hosts/common/programs/mercurial/hgrc

@@ -6,6 +6,15 @@
 # it's a port of some git extension, idk which.
 mq =
 
+# `hg help color`
+# to see the label used in a specific context, set `--color debug`.
+#   e.g. `hg stat --color debug`
+[color]
+qseries.applied = blue bold underline
+qseries.unapplied = magenta
+# qseries.message.applied
+# qseries.message.unapplied
+
 [diff]
 # showfunc = True
 # `diff.git = True`: render diffs with `diff --git` instead of `diff -r`
@@ -15,8 +24,7 @@ git = True
 
 [alias]
 noop = !$HG > /dev/null
-# --color never because it'll use black-on-black ...
-q = qseries -s -v --color never
+q = qseries -s -v
 #
 # `hg qpath`: print the path to the current queue
 qpath = !$HG noop ; echo ".hg/patches-$($HG qqueue --active)" | sed 's:hg/patches-patches:hg/patches:'