[split] Color annotations?

[Koen G]

As I was updating the You are not allowed to view links. Register or Login to view. , it occurred to me that all colour annotations appear to be on A-language and hand-1 pages.
This may have been noticed before, but I do not remember this.

I wrote about it a couple of times, most recently here: You are not allowed to view links. Register or Login to view.
But I also note in that post that since then I had noticed that Nick Pelling already mentioned something along these lines in Curse, but he didn't think they're color annotations.

Regarding root 4, row 3, there is certainly ink there but I can't tell what it's supposed to be and if there even is a descender. Looking at the way the right part is formed, I would exclude EVA-qo.