# Update the text displayed by inserting new sprites into `app.ui_sprites`
	#
	# Does not redraw if `text` has not changed.
	fun text=(text: nullable Text)
	is autoinit do
		# Don't redraw if text hasn't changed
		if text == cached_text then return
		cached_text = text

		if not init_complete then return

		# Clean up last used sprites
		for s in sprites do if target_sprite_set.has(s) then target_sprite_set.remove s
		sprites.clear

		if text == null then return

		font.write_into(self, text)

		# Register sprites to be drawn by `app.ui_camera`
		target_sprite_set.add_all sprites
	end