"Hello World" in Rainbow

HelloWorld.lua

function init()
	local label = rainbow.label("Hello World!")
	label:set_alignment('c')

	local font = rainbow.font("OpenSans-Light.ttf", 60)
	label:set_font(font)

	local screen = rainbow.platform.screen
	local center_x = screen.width * 0.5
	local center_y = screen.height * 0.5
	label:set_position(center_x, center_y)

	rainbow.scenegraph:add_label(label)
end

function update(dt) end