canopy fading too early unless harvest is imminent. A clear nitrogen deficiency has been progressing for a while now.
the color you see in the leaves directly relates to photosynthesis. e.g. if the leaf is red, it's refelcting those wavelengths and likely making less use of them at same time. Pale leaves aren't functioning as well as they could and the directly relates to rate of growth, which is what 'ripening' is despite it not being new leaves and stem elongation. It's still "growth" and it needs enerfy to build things, like cannibinoids, and reproduce cells etc... starving it is not value-added.