Predominant in this work by Riccardo Guarneri is the nuanced color of the four not perfect rectangles that interswine. If it were not for the right side at the top that presents a text executed with the usual small handwriting and that degrades until it disappears completely down, we could soon look elsewhere. But if we dwell on the work, we notice that centrally Guarneri performs a flash of horizontal light-color that from yellow, on the right, degrades into an almost imperceptible blue to the left that gives the title to the work. A wonderful intuition of an artist with a delicate aesthetic taste.