RFR: JDK-8292276 : Missing color names in CSS [v23]

[ScientificWare]

On Wed, 28 Sep 2022 17:13:42 GMT, ScientificWare <duke at openjdk.org> wrote:

>> This is referenced in Java Bug Database as
>> - [JDK-8292276 : Missing color names in CSS](https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8292276)
>> 
>> This is tracked in JBS as 
>> - [JDK-8292276 : Missing color names in CSS](https://bugs.openjdk.java.net/browse/JDK-8292276)
>> 
>> Adds missing color names, defined by CSS Level 4, in CSS.java :
>> CSS Color Module Level 4
>> W3C Candidate Recommendation Snapshot, 5 July 2022
>> [7.1 Named Colors](https://www.w3.org/TR/css-color-4/#named-color)
>> 
>> Designed from : [ScientificWare JDK-8292276 : Missing color names in CSS](https://github.com/scientificware/jdk/issues/12)
>
> ScientificWare has updated the pull request incrementally with one additional commit since the last revision:
> 
>    Moves jtreg tags to the class declaration
>   
>   Comment with tags isn't collapsed when viewed in an IDE if it's placed before the class declaration.

1. > Should it be an enhancement?
    This PR 
    - corrects or changes `Orange` value in (bug ?)
    - adds new values + improve performance (enhancements)
    So I think it's rather an enhancement.
    Why is it important to qualifying this ?

2. Could we consider once more times @SWinxy 's Aug 16 comment about color instance ?

    ```
    ...
            String color = colorNames.get(strlc);
            if (color != null) {
                return hexToColor(color);
            }
            // sometimes get specified without leading #
            return hexToColor(str);
        }
    }

    private static final Map<String, String> colorNames =
        Map.ofEntries(
            Map.entry("aliceblue", "#f0f8ff")),
            Map.entry("antiquewhite", "#faebd7"),
            Map.entry("aqua", "#00ffff"),
    ...
    ```
    Another way to proceed would be that Map returns the `int value` of the color, then we can return a `new Color(value)`.

-------------

PR: https://git.openjdk.org/jdk/pull/9825