RFR: 8267565: Support "@3x" and greater high-density image naming convention

Tue Mar 26 13:17:26 UTC 2024

On Fri, 22 Mar 2024 16:17:29 GMT, drmarmac <duke at openjdk.org> wrote:

> This PR extends the range of hi-res images that are loaded via naming convention, now including scale factors higher than `@2x`. 
> Supporting these is already being [recommended](https://developer.apple.com/design/human-interface-guidelines/images#Best-practices) for some platforms.
> 
> I tested this manually on Windows with "300%" UI scale factor, and verified `@2x` still works on macOS.

I agree, I've changed the title of the PR accordingly.

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PR Comment: https://git.openjdk.org/jfx/pull/1429#issuecomment-2020402614