RFR: 8269806: Emoji rendering on Linux [v18]

[Phil Race]

On Wed, 1 Feb 2023 18:03:10 GMT, Nikita Gubarkov <duke at openjdk.org> wrote:

>> Please do provide details .. but I don't think we need to .. or should .. be making variation selectors work where the variations aren't supported by a single physical font.
>
> Why shouldn't we? That's how it works on Windows - monochrome emoji in Segoe UI Symbos and colored in Segoe UI Emoji, not very convenient, but I believe we have to deal with it. Native apps do support this and I guess OS font rendering has some emoji-specific branching to support this.

Are you sure ? I would expect that Segoe UI Emoji has a glyf table as well as a colr table.

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PR: https://git.openjdk.org/jdk/pull/4798