About the fact that there are not many colour annotations, I am not sure that this is exceptional. For instance, in my You are not allowed to view links. Register or Login to view., I only found 9 colour annotations in 142 pages: I may have missed some, and others may be hidden under paint, but it seems that most of the illustrations were not colour-annotated. Four of these nine annotations require that leaves are painted yellow: this is clearly non-obvious and worth annotating. But at least in one case the instructions say that leaves should be painted green ("verde la foglia", at the top of You are not allowed to view links. Register or Login to view.): the relevance of this is much less clear.
Also, I think that the only colour annotation found in Trinity O.2.48 was the one pointed out by Koen You are not allowed to view links. Register or Login to view..
If Rene's list at the bottom of You are not allowed to view links. Register or Login to view. is complete, one can note that there are 13 colour annotations in 10 different pages. All of the 10 pages belong to Language A. If Language A and Language B correspond to different phases in the production of the manuscript, a possibility is that at the beginning of the project plants were colour-annotated (when needed), but this practice was dropped with time (this assuming that A was created before B).
Also, I think that the only colour annotation found in Trinity O.2.48 was the one pointed out by Koen You are not allowed to view links. Register or Login to view..
If Rene's list at the bottom of You are not allowed to view links. Register or Login to view. is complete, one can note that there are 13 colour annotations in 10 different pages. All of the 10 pages belong to Language A. If Language A and Language B correspond to different phases in the production of the manuscript, a possibility is that at the beginning of the project plants were colour-annotated (when needed), but this practice was dropped with time (this assuming that A was created before B).


![[+]](https://www.voynich.ninja/images/collapse_collapsed.png)