# iterate over channel and feature plugins
    def add_plugins(self):
        ls = all_plugin_meta()
        for name,meta in sorted(ls.items(), key=lambda e: e[1]["type"]+e[1]["title"].lower(), reverse=False):
            if not name in conf.plugins:
                conf.plugins[name] = False
                conf.add_plugin_defaults(meta, name)
            pack_ = self.pack_channels if meta.get("type") == "channel" else self.pack_features
            self.add_plg(name, meta, pack_)
        pass

    # Description text
    plugin_text = "<span size='larger' weight='heavy'>{title}</span> "\
                + "<span style='italic' foreground='slate blue'>({type}/{category})</span> "\
                + "<span weight='bold' foreground='#777777'>{version}</span>\n"\
                + "<span size='smaller' stretch='ultraexpanded'>{description}</span>"

    # Add [x] plugin setting, and its configuration definitions, set defaults from conf.*
    def add_plg(self, name, meta, pack_, prefix_="config_"):

        # Plugin enable button
        cb = gtk.CheckButton(name)
        cb.set_sensitive(not meta.get("priority") in ("core", "required", "builtin"))
        cb.get_children()[0].set_markup(self.plugin_text.format(**meta))
        cb.set_tooltip_text(self._tooltip(meta))
        pack_("config_plugins_"+name, cb, color=meta.get("color"), image=meta.get("png"), align=0)

        # Default values are already in conf[] dict
        # (now done in conf.add_plugin_defaults)
        for opt in meta["config"]:
            color = opt.get("color", None)
            type = opt.get("type", "str")
            desc = opt.get("description", "./.")

                    cb = gtk.SpinButton()
                    cb.set_adjustment(adj)
                    cb.set_digits(0)

            # ListView
            elif opt["type"] in ("list", "table", "array", "dict"):
                cb, ls = uikit.config_treeview(opt, opt.get("columns", "Key,Value").split(","))
                pack_("cfgui_tv", cb, "", None, opt=opt)
                self.widgets["config_" + opt["name"]] = ls
                pack_({}, uikit.label("<small>%s</small>" % desc, markup=True, size=455))
                continue

            # text field
            else:
                cb = gtk.Entry()
           
            pack_( prefix_+opt["name"], cb, desc, color, opt=opt )

        # spacer between plugins
        pack_( None, gtk.HSeparator() )

    # Reformat `doc` linebreaks for gtk.tooltip
    def _tooltip(self, meta):
        doc = meta.get("doc", "").strip()
        if ver < 3:
            doc = re.sub("(?<=\S) *\n(?! *\n)", " ", doc)
        return doc

    # Put config widgets into channels/features configwin notebooks
    def pack_channels(self, id=None, w=None, label=None, color=None, image=None, align=20, opt={}):
        self.plugin_options.pack_start(uikit.wrap(self.widgets, id, w, label, color, image, align, label_markup=1))

    # Separate tab for non-channel plugins
    def pack_features(self, id=None, w=None, label=None, color=None, image=None, align=20, opt={}):
        self.feature_options.pack_start(uikit.wrap(self.widgets, id, w, label, color, image, align, label_markup=1))


    # save config
    def save(self, widget):
        self.save_config(conf.__dict__, "config_")
        self.save_config(conf.plugins, "config_plugins_")
        [callback() for callback in self.hooks["config_save"]]
        conf.save(nice=1)
        self.hide()