initialize_layout = function()
	_, _, Safe_width, Safe_height = love.window.getSafeArea()
	X = App.screen.width/4
	Y = App.screen.height/4
	local w, h = App.screen.width/5, App.screen.height/5
	if OS == 'iOS' or OS == 'Android' then
		-- make space for the pop-up keyboard
		h = h/2
	end
	Square_side = math.min(w, h, 100)
	Font_size = Square_side*0.8
	love.graphics.setFont(love.graphics.newFont(Font_size))
	Padding = (Square_side-Font_size)/2
end