def boot_img(self):
    self.panel_layout.clear_widgets()
    title = Label(text='[b][color=#22A0D6][size=20]Boot.img Tools[/size][/color][/b]', markup = True, pos_hint={'x':-.05, 'y':.20})
    unpack = CustomButton(text='Unpack Boot.img', pos_hint={'x':.05, 'y':.550}, size_hint=(.40, .06))
    build = CustomButton(text='Build Boot.img', pos_hint={'x':.50, 'y':.550}, size_hint=(.40, .06))
    self.panel_layout.add_widget(title)
    self.panel_layout.add_widget(unpack)
    self.panel_layout.add_widget(build)