A little sudoku-like app for helping first-graders practice addition
draw_next_button = function()
	local w = App.width('next')
	button(Buttons, 'next', {x=Safe_width-w-20, y=20, w=w+10, h=love.graphics.getFont():getHeight()+10, bg={r=0.6, g=0.8, b=0.6},
		icon = function(p)
			App.color{r=0, g=0, b=0}
			love.graphics.print('next', p.x+5, p.y+5)
		end,
		onpress1 = function()
			animate(new)
		end,
	})
end