homescreen.kv

<HomeScreen>:

	canvas.before:
		Rectangle:
			size: self.size
			pos: self.pos
			source: "background.jpg"
	FloatLayout:
		Button:
			canvas.before:
				Color:
					rgba: 1,1,1,1
				Line:
					width: 1
					rectangle: self.x, self.y, self.width, self.height
			text:"Folium"
			size_hint: .1, .05
			pos_hint: {"center_x": .1, "top": .95}
			background_color: (1,1,1,0)
			color: 1,1,1,1
			on_release:
				root.windowdraw()
		Button:
			canvas.before:
				Color:
					rgba: 1,1,1,1
				Line:
					width: 1
					rectangle: self.x, self.y, self.width, self.height
			text:"Altair"
			size_hint: .1 ,.05
			pos_hint: {"center_x": .27, "top": .95}
			background_color: (1,1,1,0)
			color: 1,1,1,1
			on_release:
				root.chartwindow()
		Button:
			canvas.before:
				Color:
					rgba: 1,1,1,1
				Line:
					width: 1
					rectangle: self.x, self.y, self.width, self.height
			text:"Spinner"
			size_hint: .1 ,.05
			pos_hint: {"center_x": .44, "top": .95}
			background_color: (1,1,1,0)
			color: 1,1,1,1
			on_release:
				root.parent.current = "spinner"
		Button:
			canvas.before:
				Color:
					rgba: 1,1,1,1
				Line:
					width: 1
					rectangle: self.x, self.y, self.width, self.height
			text:"Logout"
			size_hint: .15 ,.05
			pos_hint: {"center_x": .85, "top": .95}
			background_color: (1,1,1,0)
			color: 1,1,1,1
			on_release:
            	root.parent.parent.log_out()
				root.parent.current = "logout"