Selecting a unit on the battlefield (Disciples: Rebirth)

Good day!
The other day, thanks to a discount, I joined this game and am very pleased with it.
It is only a small detail that strains - during the battle it is not clear which unit should be walking now. The golden aura merges with the grass + exacerbates all sunny weather, which discolours the highlighted available hexes.
For fun, I downloaded the basic Renaissance and was surprised that the basic version does not have such a problem - the walking unit stands out with a blue halo.

I understand that hardly anyone else is playing and developing the game, but is it possible (mod) to do it as it was in vanilla or to increase the contrast of the golden aura / available hexes so that it can be seen clearly?

Thanks to!