4 * Battery and light power consts
5 * Mould power increases to prevent farming (partially implemented, needs balancing)
9 * Seralize light on / off and colour selection state across day / night transition
14 * Light colour selection
15 * All lights multicolour
16 * Light direction configuration
18 * Sunrise transition screen
19 * Lose condition (no turnips and no seeds)
20 * 'End the Day' button