RFR: 8375561: Class NGGroup is in need of some cleanup [v4]

[Marius Hanl]

On Thu, 22 Jan 2026 19:04:19 GMT, Michael Strauß <mstrauss at openjdk.org> wrote:

> What's the story with the `Blend.Mode` - is it still being used, do we need to remove it from other places, or we only remove it from this class?
> 
> Does anyone know why we have two different `Blend.Mode` classes?

Related to: https://github.com/openjdk/jfx/pull/1846

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PR Comment: https://git.openjdk.org/jfx/pull/2043#issuecomment-3786968923