by the looks of it there are no markers on the table - is that correct?
(I hate markers on tables)
I to hate markers or any thing else that ruins the sight of the gaming table (like rulers, dice, rulebooks, ipads, cupps, etc). Markers might be ok it they are made to fit in to the whole setting and match the terrain.
Lion Rampant state to be needing one kind of marker to indicate "Battered" units, we use a cassulty minis or a small base with some arrows or a stone on to mark it or just try to remember it anyway... we try to avoid gaming gems or mini dice etc.
Best regards Michael