I wonder if you would consider hiding the symbols above items when not in menus (the moving arrows and the exclamation mark above the new crafting stockpile if unassigned a resource or building error). I find the arrows a little unsightly when just viewing the town, especially as they remain large as you zoom out.
If you make them visible only when in menus then you can see what has errors or tasks assigned to it without it affecting the look of the town when just looking around and admiring your creation
I think it would be good to do this for the defend symbol too when not in the defense menu as I think you only need to check/change this when in the defense menu anyway.
Thanks for all your hard work in the game