Icons in Controls — Allow us to also choose from the built-in icons

[donn-xx]

Not sure if this is already a thing, but I often want to use an icon on a button (or some other control) and I just want to use whatever the engine already has baked-in.

Would it be possible to make a resource type that allows this? Like "New BuiltinEditorIcon".

[Calinou]

For binary size reasons, editor icons are not included in export templates or even when you run a project in the first place, so this would result in the icon disappearing once you run the project.

[donn-xx]

But it would be useful for in-editor tools.