self.col, self.row = col, row

        bg = self.graph.value(sub, L9.color, default='#000000')

        rgb = webcolors.hex_to_rgb(bg)

        hsv = colorsys.rgb_to_hsv(*[x/255 for x in rgb])

        darkBg = webcolors.rgb_to_hex(tuple([int(x * 255) for x in colorsys.hsv_to_rgb(

            hsv[0], hsv[1], .2)]))

        tk.Frame.__init__(self, master, bd=1, relief='raised', bg=bg)

        self.name = self.graph.label(sub)

        self.slider_var = tk.DoubleVar()

        self.pauseTrace = False

        self.scale = SubScale(self, variable=self.slider_var, width=20)

            fg='white', pady=0)

        self.graph.addHandler(self.updateName)

        self.namelabel.pack(side=tk.TOP)

        levellabel = tk.Label(self, textvariable=self.slider_var, font="Arial 6",

            bg='black', fg='white', pady=0)

        levellabel.pack(side=tk.TOP)

        self.scale.pack(side=tk.BOTTOM, expand=1, fill=tk.BOTH)

        for w in [self, self.namelabel, levellabel]:

            dragSourceRegister(w, 'copy', 'text/uri-list', sub)