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: pwu@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 To unsubscribe send an email to devel-leave@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue