We might have the fixed knowledge that only green plants produce oxygen. The chlorophyll pigments, which do the process of photosynthesis are green. But photosynthesizing pigments are not only green, just that the green is the most prevalent. Other photosynthesizing pigments not confined to chlorophylls have all the colors of the rainbow: red, orange, yellow, green, indigo, and violet. So the whole range of the visible light we commonly know as ROYGVIB corresponds to the photosynthesizing pigments.The non-absorbed part of the light spectrum is what gives photosynthetic organisms their color or the color we see, as in green plants, red algae, purple bacteria.
The secret why bright colors show off or predominantly manifest in autumn or during fruit ripening is....disintegration of the green pigments and unmasking these bright colors. So the bright colors are already there in the first place!
So what do we have here? Stages in the life of a developing pineapple.
We have this heirloom variety in our property. The fruits are sweeter but smaller than the common table variety. The leaves are saw-toothed at the edges. These leaves are the source of fibers producing the fine piña cloths and make the expensive formal Filipino suits and dresses called Barong Tagalog.