Line index color of empty lines should be white

[MaaaxiKing]

Describe the project you are working on:

Describe the problem or limitation you are having in your project:
Empty lines aren't unsafe lines but they aren't real safe lines, they're just empty. The line index color is sometimes green (safe) and sometimes gray (unsafe). I couldn't find what it depends on.
Describe the feature / enhancement and how it helps to overcome the problem or limitation:
Empty lines/ lines with spaces/ lines with indentations should have the line index color white.
Describe how your proposal will work, with code, pseudocode, mockups, and/or diagrams:
1 extends Node
2
3 var test
If this enhancement will not be used often, can it be worked around with a few lines of script?:
No.
Is there a reason why this should be core and not an add-on in the asset library?:
I don't have experience with add-ons.

[dalexeev]

Empty lines aren't unsafe lines but they aren't really safe lines

In fact, empty lines are the safest lines. 😆
Three colors is too much. Gray color indicates possible type errors. If there are no such errors, then all lines should be green.

[KoBeWi]

tbh this sounds more like a bug.

[MaaaxiKing]

@KoBeWi Yes, I also think it's a bug but I made a proposal because I don't want this bug to be fixed and then the color would be changed anyway to another (my suggestion: white) if this proposal will be accepted.

[dalexeev]

See also: godotengine/godot#20418.

[Calinou]

Having three different line number colors might start looking like Christmas 🙂

I think it'd be better to always mark blank/comment lines as safe instead.

[MewPurPur]

These are already marked safe in 4.0

[Calinou]

These are already marked safe in 4.0

Indeed, this is implemented as of 4.0.rc1 (albeit differently from what's proposed in OP, but the intent is similar):