Colors are very important in the art and meaning of the mural, and the recent cleaning is revealing a very different color scheme than that first visible. Greens are revealed to be rich and bright blues; oranges are reds; and so forth.
Importantly, the draperies are revealed to be blue, which is a particularly important color in Judaism, especially when it is associated with holy textiles. Blue was used for coverings and fabrics used in the Tabernacle (the Tent of Meeting) as described in the Book of Numbers 4:6-12; blue cloths were used for covering and carrying the sacred implements.
Numbers 4:6: “Then they shall put on it a covering of goatskin and spread on top of that a cloth all of blue, and shall put in its poles. 7 And over the table of the bread of the Presence they shall spread a cloth of blue and put on it the plates, the dishes for incense, the bowls, and the flagons for the drink offering; the regular showbread also shall be on it. 8 Then they shall spread over them a cloth of scarlet and cover the same with a covering of goatskin, and shall put in its poles. 9 And they shall take a cloth of blue and cover the lampstand for the light, with its lamps, its tongs, its trays, and all the vessels for oil with which it is supplied. 10 And they shall put it with all its utensils in a covering of goatskin and put it on the carrying frame. 11 And over the golden altar they shall spread a cloth of blue and cover it with a covering of goatskin, and shall put in its poles. 12 And they shall take all the vessels of the service that are used in the sanctuary and put them in a cloth of blue and cover them with a covering of goatskin and put them on the carrying frame.”