#define TRAY_LOW_HEALTH 	BITFLAG(0)
#define TRAY_LOW_WATER		BITFLAG(1)
#define TRAY_LOW_NUT		BITFLAG(2)
#define TRAY_ALERT			BITFLAG(3)
#define	TRAY_STASIS			BITFLAG(4)
#define TRAY_COVERED		BITFLAG(5)
#define TRAY_PLANT_DEAD		BITFLAG(6)
#define	TRAY_PLANT_LIVE		BITFLAG(7)
#define TRAY_PLANT_HARVEST 	BITFLAG(8)
#define	TRAY_HARVEST		BITFLAG(9)