RFR: 8365389: Remove static color fields from SwingUtilities3 and WindowsMenuItemUI [v2]

[Phil Race]

On Fri, 15 Aug 2025 15:18:01 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

> There are still static fields to store colors in `WindowsMenuItemUI`, do you want to get rid of those too? My bug report implied removing them, yet currently the static fields with colors remain intact in `WindowsMenuItemUI`.

Yes I do. I overlooked them.

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PR Comment: https://git.openjdk.org/jdk/pull/26783#issuecomment-3192793910