Sign for when you change a property of an instanced scene.

[phnix-dev]

After learning Godot, I had to learn Unity, and there is something that Unity does that may be useful to Godot: "Having their name label in bold, and with a blue line in the left margin" for properties that are modified by the user in an instanced or inherited scene.

I know there is a reset arrow that is added to the modified property, but I remember working on a game with a lot of buttons (which were inherited scenes), it was difficult to know if the property had been modified in the instance or in the original scene.
For example, this is particularly noticeable with the rect_size property of the Control, where the arrow does not disappear when instantiated or inherited.

In this scene, I have a script with 3 strings exported with "Default" as default value, I have renamed the string A and changed the button size.

This scene is inherited from the other one, here I just changed the string C.
The reset arrow for the string A is gone but not the rect_size one.