Option to hide upgrade symbol

[GAB]

I would love to hide those upgrade arrows. Buildings like powerful oil refinery that cost 2000 greenies I am never going to upgrade. Would be nice to have a clean look to my airport!

 

[Husam]

Maybe if more smaller will be better than remove it.
Difficult to know which buildings need upgrade without these arrows.

 

[GAB]

Maybe if more smaller will be better than remove it.
Difficult to know which buildings need upgrade without these arrows.

Yeah I thought about that, but if you go into a building to hude the marker I feel like i would remeber which buildings i chose.
You have a huge airport though so might be harder when you have more buildings!