In this pictures you can see that the yellow is easily
to see after 38 hours, maybe even after 20 hours. the yellow color
appears clear earlier than the most "time sequences of color changes"
show. In addition you also can see that the red, blue and green
color appears in almost all pictures, but the yellow is missing
first.
The photographs where shot with a Fujifilm DX 7 digital camera and
processed with Adobe PhotoShop.