RFR: 8375065: Update LCMS to 2.18 [v2]

[Phil Race]

On Thu, 5 Feb 2026 20:27:27 GMT, Damon Nguyen <dnguyen at openjdk.org> wrote:

>> Upgrade Little Color Management System to latest version (2.18).
>
> Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove redundancy

So it looks Ok now. What testing did you do ? As well as the automated tests, I recommend building and running the J2Demo and take particular note of the color tab.

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PR Comment: https://git.openjdk.org/jdk/pull/29592#issuecomment-3856084127