RFR: 8301302: Platform preferences API [v23]

[Michael Strauß]

On Fri, 10 Nov 2023 21:23:54 GMT, Michael Strauß <mstrauss at openjdk.org> wrote:

>> Please read [this document](https://gist.github.com/mstr2/9f46f92c98d3c86aa6a0b4224a9a6548) for an introduction to the Platform Preferences API, and how it interacts with the proposed style theme and stage appearance features.
>
> Michael Strauß has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Rename Appearance to ColorScheme

Joe commented on the CSR that we might have `Appearance` implement an interface and use this interface in the API to be more flexible. While I don't agree with this (the dark-on-light flag doesn't need to be more complex than it is), I acknowledge that naming it "appearance" might be a bit too much.

I decided to rename the `Appearance` enum to `ColorScheme`, which is the term the CSS specification uses for the same concept. This frees up the term `Appearance` to be used for a future enhancement that may encompass more aspects than just the color scheme.

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PR Comment: https://git.openjdk.org/jfx/pull/1014#issuecomment-1806457037