This new Patch 10.2 PTR build has added new Druid Form glyphs confirming that Druids will be getting many of the speculated forms including the Fish! There’s also a new type of Mark.
We still don’t know which colors these will be, but at the very least it’s looking more and more like these are all Druid customizations!
Silent Marks
A new set of Silent Marks have been added to the Patch 10.2 PTR which:
Use: Channel at a targeted <creature>, attuning the mark to their form.