tag.lua

-- Create a taglist widget
  s.mytaglist =
    awful.widget.taglist {
    screen = s,
    filter = function(t)
      return t.selected or #t:clients() > 0
    end,
    buttons = awful.util.taglist_buttons,
    layout = {
      spacing = -12,
      spacing_widget = {
        color = beautiful.bg_normal,
        shape = gears.shape.parallelogram,
        widget = wibox.widget.separator
      },
      layout = wibox.layout.fixed.horizontal
    },
    widget_template = {
      {
        {
          {
            {
              {
                id = "text_role",
                widget = wibox.widget.textbox
              },
              layout = wibox.layout.fixed.horizontal
            },
            left = 2,
            right = 2,
            widget = wibox.container.margin
          },
          id = "background_role",
          widget = wibox.container.background
        },
        bottom = 2,
        color = beautiful.bg_normal,
        widget = wibox.container.margin,
        id = "current_tag"
      },
      left = 3,
      right = 3,
      layout = wibox.container.margin,
      create_callback = function(self, t, index, objects)
        local col = t.selected and beautiful.border_focus or beautiful.bg_normal
        local current_tag = self:get_children_by_id("current_tag")[1]

        current_tag.color = col

        t:connect_signal("property::urgent", function()
            current_tag.color = beautiful.fg_urgent
          end
        )
      end,
      update_callback = function(self, t, index, objects)
        local col = t.selected and beautiful.border_focus or beautiful.bg_normal
        self:get_children_by_id("current_tag")[1].color = col
      end
    }
  }