Restoration of the Sistine Chapel frescoes time, monotonous, "tend[ing] towards dull red and grey". Mancinelli writes that the restoration reveals "a new Michelangelo" as a colourist and that this "new character makes much better sense of his historical position". He goes on to say that perceptive viewers of the Sistine Chapel ceiling have always been aware that the range of colours used was very different from that which could be seen, and included the same pinks, apple greens, oranges, yellows and pale blues that were employed by Michelangelo's teacher, Domenico Ghirlandaio, one of the most competent fresco painters of the Renaissance. The brilliant palette ought to
Sistine Chapel layer of animal glue and "lamp black", all of the wax, and all of the overpainted areas were contamination of one sort or another: smoke deposits, earlier restoration attempts, and painted definition by later restorers in an attempt to enliven the appearance of the work. Based on this decision, according to Arguimbau's critical reading of the restoration data that have been provided, the chemists of the restoration team decided upon a solvent that would effectively strip the ceiling down to its paint-impregnated plaster. After treatment, only that which was painted "buon fresco" would remain. The only reproduction of the Sistine