Placing image button on top of background image

[Sintek]

So...I played around today and finally got this figured out...
Step 1 down...Lotsa steps to go...

Home = """
<EzHomeScreen>:
    canvas.before:
        Rectangle:
            pos: self.pos
            size: self.size
            source: 'Images\main.png'                
    FloatLayout:
        Button:
            background_color: 0, 0 ,0, 0
            size_hint: .32, .046         
            on_press: root.leave() 
            pos_hint: {'center_x': 0.18, 'center_y': 0.165}   
            Image:
                source: "Images\leave.png"
                center_x: self.parent.center_x
                center_y: self.parent.center_y
        Button:
            background_color: 0, 0 ,0, 0
            size_hint: .32, .046         
            on_press: root.print() 
            pos_hint: {'center_x': 0.50, 'center_y': 0.165}   
            Image:
                source: "Images\print.png"
                center_x: self.parent.center_x
                center_y: self.parent.center_y
        Button:
            background_color: 0, 0 ,0, 0
            size_hint: .32, .046         
            on_press: root.launch() 
            pos_hint: {'center_x': 0.82, 'center_y': 0.165}   
            Image:
                source: "Images\launch.png"
                center_x: self.parent.center_x
                center_y: self.parent.center_y
"""

Builder.load_string(Home)

class EzHomeScreen(Screen):
    def leave(self):
        print('leave pressed')  
    def leave(self):
        print('print pressed') 
    def leave(self):
        print('launch pressed')
pass


sm = ScreenManager(transition=FadeTransition())
sm.add_widget(EzHomeScreen(name='EzHome'))


class ToTSlider(App):
    def build(self):
        return sm