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