RFR: 8371080: RichTextArea: missing styles in Caspian

[Ajit Ghaisas]

On Mon, 3 Nov 2025 19:49:37 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> Added missing RichTextArea styles to `caspian.css`.
> 
> This is a trivial change.
> 
> To test, one can use the latest Monkey Tester Window -> Stylesheet menu.
> https://github.com/andy-goryachev-oracle/MonkeyTest
> 
> <img width="1021" height="350" alt="Screenshot 2025-11-03 at 11 50 50" src="https://github.com/user-attachments/assets/8559e702-5294-4a98-a251-f3b2283d7a83" />

I tested with the provided MonkeyTester application and can confirm that the RichTextArea control honors the Caspian styles with this change.

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Marked as reviewed by aghaisas (Reviewer).

PR Review: https://git.openjdk.org/jfx/pull/1959#pullrequestreview-3429170025