Could you please increase the AoE marker for this type of shell?
It effectively destroys a large area, but doesn't mark it as such which causes multiple shells to be wasted on the same space.

Sorry, I dont know how to do that

Looking at the 'AtomicArtillery', there must be a way. I guess.
It's defined in the core (not base) files under utility sprites as 'explosion_chart_visualization'.

I'd also appreciate the change, which I'll do locally anyway :D (just like the stack size)

I think that explosion_chart_visualization is just an icon...
If you know how to do that, please tell me and I´ll add it to the mod