[OpenJDK 2D-Dev] RFR: 8254370: Update the classes in the java.awt.color package

[Phil Race]

On Mon, 12 Oct 2020 18:23:48 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> - The spec  for ICC_ProfileRGB.getGamma(int) and ICC_ProfileRGB.getTRC(int) is updated
>  - Two additional tests are added to cover some basic specified functionality
>  - Some code in these classes was simplified/cleaned
>  - Some common code is extracted to the separate methods.

Marked as reviewed by prr (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/612