On Tue, Mar 14, 2023 at 11:44 PM <yanqiy...@gmail.com> wrote:
>
> With some layering package trick, yes, all behavior returned to before.
> after the swap.

Aha. Thank you for testing. Hmm, that is interesting...

> Also, at least for Evince it can tell me what font it is using, and in
> this case it's google-noto-sans-cjk-fonts or VF version.

I mean we may have different version of Noto CJK fonts on host and
flatpak runtime - I don't know if they have though. that is quite
difficult to see on apps which one it is.

>
> 在 2023-03-14星期二的 23:14 +0900,Akira TAGOH写道:
> > > Thank you for the feedback.
> > >
> > > What if you install google-noto-sans-cjk-fonts instead of
> > > google-noto-sans-cjk-vf-fonts?
> > > just wanted to make sure if this is a variable font-related issue
> > > or
> > > design-related update in Noto CJK.
> > > Also, good to try on non-flatpak app too. it is a bit complicated
> > > to
> > > make sure if they use the expected fonts.
> > > The best way may be to check it out on pango-view and hb-view.
> > >
> > > On Tue, Mar 14, 2023 at 10:58 PM <yanq...@fedoraproject.org> wrote:
> > > > >
> > > > > Hi,
> > > > >
> > > > > Seems that some changes mentioned below just hit
> > > > > fedora:fedora/38/x86_64/testing/silverblue today in version
> > > > > 38.20230314.0. And ostree diff is below (changes between
> > > > > 38.20230313.0
> > > > > and 38.20230314.0, filtered to show only fontconfig files for
> > > > > CJK):
> > > > >
> > > > > D    /usr/etc/fonts/conf.d/65-0-google-noto-sans-cjk-ttc.conf
> > > > > D    /usr/etc/fonts/conf.d/65-google-noto-cjk-fonts.conf
> > > > > D    /usr/share/fontconfig/conf.avail/65-0-google-noto-sans-
> > > > > cjk-
> > > > > ttc.conf
> > > > > D    /usr/share/fontconfig/conf.avail/65-google-noto-cjk-
> > > > > fonts.conf
> > > > > A    /usr/etc/fonts/conf.d/65-0-google-noto-sans-cjk-vf-
> > > > > fonts.conf
> > > > > A
> > > > > /usr/etc/fonts/conf.d/65-google-noto-sans-cjk-mono-vf-
> > > > > fonts.conf
> > > > > A    /usr/etc/fonts/conf.d/65-google-noto-sans-cjk-vf-
> > > > > fonts.conf
> > > > > A    /usr/share/fontconfig/conf.avail/65-0-google-noto-sans-
> > > > > cjk-vf-
> > > > > fonts.conf
> > > > > A
> > > > > /usr/share/fontconfig/conf.avail/65-google-noto-sans-cjk-mono-
> > > > > vf-
> > > > > fonts.conf
> > > > > A    /usr/share/fontconfig/conf.avail/65-google-noto-sans-cjk-
> > > > > vf-
> > > > > fonts.conf
> > > > >
> > > > > But I am noticing some font being very thin, including English
> > > > > fonts in
> > > > > Evince when not using embed fonts and all non-UI text in
> > > > > Telegram
> > > > > (both
> > > > > Evince and Telegram is installed from flatpak).
> > > > >
> > > > > I don't know if this should be considered as a bug from this
> > > > > change
> > > > > or
> > > > > just several applications not being compatible with VF fonts
> > > > > and
> > > > > should
> > > > > be reported to their upstream separately.
> > > > >
> > > > > Cheers,
> > > > > Qiyu Yan
> > > > >
> > > > > ---
> > > > > This is an example of a random PDF file not being rendered
> > > > > correctly:
> > > > > https://texdoc.org/serve/latexmk/0
> > > > >
> > > > > Firefox can correctly render fonts with different weight while
> > > > > Evince
> > > > > will produce equal-weight result.
> > > > >
> > > > > 在 2023-01-09星期一的 13:28 -0500,Ben Cotton写道:
> > > > > > > https://fedoraproject.org/wiki/Changes/Noto_CJK_Variable_Fonts
> > > > > > >
> > > > > > > This document represents a proposed Change. As part of the
> > > > > > > Changes
> > > > > > > process, proposals are publicly announced in order to
> > > > > > > receive
> > > > > > > community feedback. This proposal will only be implemented
> > > > > > > if
> > > > > > > approved
> > > > > > > by the Fedora Engineering Steering Committee.
> > > > > > >
> > > > > > >
> > > > > > > == Summary ==
> > > > > > > Switch the default Noto CJK fonts for Chinese, Japanese and
> > > > > > > Korean
> > > > > > > from static to variable fonts.
> > > > > > >
> > > > > > > == Owner ==
> > > > > > > * Name: [[User:pwu| Peng Wu]]
> > > > > > > * Email: p...@redhat.com
> > > > > > >
> > > > > > >
> > > > > > > == Detailed Description ==
> > > > > > > In order to reduce the font size in Noto CJK fonts, we plan
> > > > > > > to
> > > > > > > switch
> > > > > > > to use the variable fonts by default.
> > > > > > >
> > > > > > > # Split the google-noto-cjk-fonts package into
> > > > > > > google-noto-sans-cjk-fonts and google-noto-serif-cjk-fonts,
> > > > > > > and
> > > > > > > provide the variable fonts in google-noto-sans-cjk-vf-fonts
> > > > > > > and
> > > > > > > google-noto-serif-cjk-vf-fonts.
> > > > > > > # Drop several sub packages which are not installed by
> > > > > > > default
> > > > > > > from
> > > > > > > the google-noto-cjk-fonts package.
> > > > > > > ## Like google-noto-sans-cjk-*-fonts, google-noto-sans-*-
> > > > > > > fonts,
> > > > > > > google-noto-sans-mono-cjk-*-fonts, google-noto-serif-cjk-*-
> > > > > > > fonts
> > > > > > > and
> > > > > > > google-noto-serif-*-fonts
> > > > > > > # Install the Noto CJK Variable Fonts by default.
> > > > > > >
> > > > > > > Fedora Copr for testing:
> > > > > > > https://copr.fedorainfracloud.org/coprs/pwu/noto-cjk/
> > > > > > >
> > > > > > > == Feedback ==
> > > > > > >
> > > > > > >
> > > > > > > == Benefit to Fedora ==
> > > > > > > The variable fonts will reduce the disk space usage and
> > > > > > > live
> > > > > > > image
> > > > > > > size compared to the static fonts.
> > > > > > >
> > > > > > > {| class="wikitable"
> > > > > > > > > + RPM Size
> > > > > > > > > -
> > > > > > > !  Size (bytes) !! Noto Sans CJK !! Noto Serif CJK
> > > > > > > > > -
> > > > > > > > > Static Fonts || 130674365 || 181621033
> > > > > > > > > -
> > > > > > > > > Variable Fonts || 64613100 || 56924710
> > > > > > > > > }
> > > > > > >
> > > > > > > == Scope ==
> > > > > > > * Proposal owners:
> > > > > > > ** Package four font packages for Noto CJK fonts
> > > > > > > ** Retire google-noto-cjk-fonts in Fedora rawhide
> > > > > > > ** Switch to install variable fonts by default in fedora-
> > > > > > > comps
> > > > > > > and
> > > > > > > langpacks
> > > > > > > ** Submit pull request to lorax templates to use
> > > > > > > google-noto-sans-cjk-fonts in the boot.iso
> > > > > > >
> > > > > > > * Other developers:
> > > > > > >
> > > > > > > * Release engineering:
> > > > > > > * Policies and guidelines: N/A (not needed for this Change)
> > > > > > > * Trademark approval: N/A (not needed for this Change)
> > > > > > > * Alignment with Objectives:
> > > > > > >
> > > > > > >
> > > > > > > == Upgrade/compatibility impact ==
> > > > > > >
> > > > > > > When upgrade, the variable fonts will be installed by
> > > > > > > default.
> > > > > > >
> > > > > > > == How To Test ==
> > > > > > >
> > > > > > > * Please upgrade to Fedora 38 or rawhide to get the latest
> > > > > > > fonts
> > > > > > > * Install the variable fonts: google-noto-sans-cjk-vf-fonts
> > > > > > > and
> > > > > > > google-noto-serif-cjk-vf-fonts
> > > > > > > ** Check the google-noto-sans-cjk-ttc-fonts and
> > > > > > > google-noto-serif-cjk-ttc-fonts packages are replaced
> > > > > > > * Then use CJK locales to check if the new fonts have any
> > > > > > > problem
> > > > > > >
> > > > > > > == User Experience ==
> > > > > > >
> > > > > > > This new variable fonts will reduce the disk space usage
> > > > > > > and live
> > > > > > > image size.
> > > > > > >
> > > > > > > == Dependencies ==
> > > > > > >
> > > > > > >
> > > > > > > == Contingency Plan ==
> > > > > > >
> > > > > > > * Contingency mechanism: Use the static fonts by default -
> > > > > > > google-noto-sans-cjk-fonts and google-noto-serif-cjk-fonts
> > > > > > > * Contingency deadline: N/A
> > > > > > > * Blocks release? N/A
> > > > > > >
> > > > > > >
> > > > > > > == Documentation ==
> > > > > > > N/A (not a System Wide Change)
> > > > > > >
> > > > > > > == Release Notes ==
> > > > > > >
> > > > > > > This new variable fonts will reduce the disk space usage
> > > > > > > and live
> > > > > > > image size.
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > > Ben Cotton
> > > > > > > He / Him / His
> > > > > > > Fedora Program Manager
> > > > > > > Red Hat
> > > > > > > TZ=America/Indiana/Indianapolis
> > > > > > > _______________________________________________
> > > > > > > devel mailing list -- devel@lists.fedoraproject.org
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> > > > > > > devel-le...@lists.fedoraproject.org
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> > >
> > >
> > > --
> > > Akira TAGOH
> > > _______________________________________________
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> > > Fedora Code of Conduct:
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>
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-- 
Akira TAGOH
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