Design and develop "plugins" module to allow embedding 3rd party JavaFX controls

[AlmasB]

Expected Behavior

Developers are able to embed popular JavaFX controls into SB as a separate module, i.e. not inside app or kit.

Current Behavior

Only app and kit modules are present.

Context

There is demonstrable evidence of popularity of this feature in the community

[AlmasB]

Not a short-term goal but adding this here so ideas can be generated over time. In addition, creates a space for users and developers to keep track of the development of 3rd party controls integration.

[eugener]

I was under impression that SceneBuilder is already able to import 3rd-party custom controls with Library Manager.

[AlmasB]

If I understand correctly, based on issues and open PRs, the idea is that SB _ships_ with these custom controls, available for use out of the box, without imports.

…

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[Oliver-Loeffler]

Well, essentially its also that foreign controls provide properties which are unknown to Scene Builder.
The Scene Builder inspector offers nice editors to properties which are known (vie MetaData). External controls may have specific properties, as shown in PR #229.

If you're the autor of a control, how can you tell Scene Builder about some specific properties you'd like to expose for editing?

Of course, when doing so, Scene Builder runs external code which can be also malicious - this needs to generally treated with care.