how can I draw on top inspector properties?

Hi, I'm asking how can I draw something per property shown on inspector, like how unity draws prefab changes with blue vertical line on image shown below.


Is there a function to do this or an internal one we can use with reflection? Thanks in advance.

Just in case anyone gonna mention PropertyDrawers I already know that but they only work for specific components which is not what I'm looking for. I need an generic gui callback that runs per property for all component on inspector,