Mark red an empty field

Hello everyone. I remember I saw a long time ago a way to make scripts so you can indicate important variables. This meant that when said script was attached to a gameobject, these "important" variables would show color red in the inspector if they were empty to show how important it is.

But it seems I am not able to find it anymore and was wondering if anyone has it available. I tried searching it with google, but I wasn't able to find it there.

I'm quite new to the concept of serialization so I'm not ready yet to do it quite myself yet and I would really love to see it to learn more about it.

Thanks.

 

This is often done using a PropertyDrawer. Here are a couple examples:
https://github.com/redbluegames/uni...e/master/Assets/RedBlueGames/NotNullAttribute
https://forum.unity.com/threads/freebie-really-basic-not-null-attribute.520644/

This is not actually related to serialization at all, just inspector UI.

 

Thank you very much. Ok, then I'll learn more about the inspector UI.