patchbomb: add label and color to the confirm output

The current output is mostly a wall of text. This makes it hard to
actually check something for people with lazy eyes. We use labels and
colors to make it more joyful (and get the patch summaries to stand
out). The colors have been arbitrarily choosen. They can be changed
later if someone has a more scientific choice.

hgext/color.py

@@ -301,6 +301,11 b' except ImportError:'
            'histedit.remaining': 'red bold',
            'ui.prompt': 'yellow',
            'log.changeset': 'yellow',
+           'patchbomb.finalsummary': '',
+           'patchbomb.from': 'magenta',
+           'patchbomb.to': 'cyan',
+           'patchbomb.subject': 'green',
+           'patchbomb.diffstats': '',
            'rebase.rebased': 'blue',
            'rebase.remaining': 'red bold',
            'resolve.resolved': 'green bold',

hgext/patchbomb.py

@@ -483,14 +483,14 b' def patchbomb(ui, repo, *revs, **opts):'
     replyto = getaddrs('Reply-To')
 
     if opts.get('diffstat') or opts.get('confirm'):
-        ui.write(_('\nFinal summary:\n\n'))
-        ui.write(('From: %s\n' % sender))
+        ui.write(_('\nFinal summary:\n\n'), label='patchbomb.finalsummary')
+        ui.write(('From: %s\n' % sender), label='patchbomb.from')
         for addr in showaddrs:
-            ui.write('%s\n' % addr)
+            ui.write('%s\n' % addr, label='patchbomb.to')
         for m, subj, ds in msgs:
-            ui.write(('Subject: %s\n' % subj))
+            ui.write(('Subject: %s\n' % subj), label='patchbomb.subject')
             if ds:
-                ui.write(ds)
+                ui.write(ds, label='patchbomb.diffstats')
         ui.write('\n')
         if ui.promptchoice(_('are you sure you want to send (yn)?'
                              '$$ &Yes $$ &No')):