RFR: 8190907: Windows 10 default Korean Font Malgun Gothic available not used by GUI elements even though available without Korean Language Pack [v3]

[Naoto Sato]

On Fri, 4 Mar 2022 05:07:44 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> Malgun_Gothic(https://en.wikipedia.org/wiki/Malgun_Gothic) had replaced Gulim korean font so it needs to be updated to show korean fonts
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Revert dialogInput. Add Bolditalic

Initially I thought it was surprising this problem has not been reported quite some time since `Malgun Gothic` was introduced. Then I guessed that Korean customers possibly would all install Korean language pack because without it, they would not be able to input Korean chars (no Korean input method included by default). I think in IntelliJ's case, possibly the typical users are all developers installing English Windows, thus there have been bug reports. So, I would rather think replacing those fonts with `Malgun Gothic` could be problematic to the former Korean customers.
Having said that, I would want the `chaining` functionality which could effectively satisfy both users. Other than the option you provided, there could be an extension of the fontconfig, such as,

serif.plain.korean=Batang, Malgun Gothic

so that if `Batang` file is not ther, we can fall back to `Malgun Gothic`.

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PR: https://git.openjdk.java.net/jdk/pull/7643