Over the table of the Presence they are to spread a blue cloth and place the plates and cups on it, along with the bowls and pitchers for the drink offering. The regular bread offering is to remain on it.
Jewish Publication Society of America Version (JPS1917) - Numbers 4:7 >And upon the table of showbread they shall spread a cloth of blue, and put thereon the dishes, and the pans, and the bowls, and the jars wherewith to pour out; and the continual bread shall remain thereon.