Hello, On Wed, Dec 29, 2021 at 4:04 PM Ben Cotton <bcotton@xxxxxxxxxx> wrote: > > https://fedoraproject.org/wiki/Changes/DefaultToNotoFonts > > == Summary == > Changing the default fonts for various languages to Noto Fonts as much > as possible, to make consistency on the text rendering. > > == Owner == > * Name: [[User:Tagoh|Akira TAGOH]] > * Email: <tagoh@xxxxxxxxxx> > > > == Detailed Description == > For a long time we have used DejaVu fonts as the default font for > European and other language scripts. On the other hand some language > scripts are not covered by DejaVu and hence have other default fonts. > (A few languages like Chinese, Japanese and Korean, as well as > Gurmukhi, Sinhala, and emoji are already using Noto fonts by default > for some time.) This situation leads to inconsistencies in text > rendering on applications and desktops, particularly when mixing > different character sets. Further Noto fonts bring some further > advantages: the fonts are generally higher quality and support > variable fonts for most scripts, making them more compact. > > This change aims to provide better experience and consistent text > rendering across more languages by replacing DejaVu with Noto as the > general system default set of fonts. > > The following packages will be installed by default to replace > DejaVu's coverage: > * google-noto-sans-vf-fonts > * google-noto-serif-vf-fonts > * google-noto-sans-mono-vf-fonts > * google-noto-sans-arabic-vf-fonts > * google-noto-sans-cherokee-vf-fonts > * google-noto-sans-thaana-vf-fonts > * google-noto-sans-hebrew-vf-fonts > * google-noto-rashi-hebrew-vf-fonts > * google-noto-sans-math-vf-fonts > * google-noto-sans-armenian-vf-fonts > * google-noto-serif-armenian-vf-fonts > * google-noto-sans-canadian-aboriginal-vf-fonts > * google-noto-sans-georgian-vf-fonts > * google-noto-serif-georgian-vf-fonts > * google-noto-sans-lao-vf-fonts > * google-noto-serif-lao-vf-fonts > * google-noto-serif-gurmukhi-vf-fonts > * google-noto-serif-sinhala-vf-fonts Will all of them be installed by default or depending on langpacks selection? > And you can check > [https://tagoh.fedorapeople.org/fonts/noto/f36-noto.html the table] to > see what languages will be affected by this change. > > > == Benefit to Fedora == > We would get better text rendering on applications and desktops. Also > this change should save about 6MB on the fresh install. > > <pre> > $ rpm -qlv dejavu-sans-fonts dejavu-serif-fonts dejavu-sans-mono-fonts > | awk 'BEGIN{a=0}{a+=$5}END{print a}' > 10789272</pre> > <pre> > $ rpm -qlv google-noto-sans-vf-fonts google-noto-serif-vf-fonts > google-noto-sans-mono-vf-fonts google-noto-sans-arabic-vf-fonts > google-noto-sans-cherokee-vf-fonts google-noto-sans-thaana-vf-fonts > google-noto > -sans-hebrew-vf-fonts google-noto-rashi-hebrew-vf-fonts > google-noto-sans-math-vf-fonts google-noto-sans-armenian-vf-f > onts google-noto-serif-armenian-vf-fonts > google-noto-sans-canadian-aboriginal-vf-fonts > google-noto-sans-georgian-vf-f > onts google-noto-serif-georgian-vf-fonts google-noto-sans-lao-vf-fonts > google-noto-serif-lao-vf-fonts google-noto-serif-gurmukhi-vf-fonts > google-noto-serif-sinhala-vf-fonts | awk 'BEGIN{a=0}{a+=$5}END{print > a}' > 4753340 > </pre> > > == Scope == > * Proposal owners: > ** Update google-noto-fonts and dejavu-fonts to change the priority > for fontconfig config. > ** Update langpacks to update the dependency. > ** Update comps to make Noto fonts default. > ** Update lorax templates related to DejaVu. > ** Update fontconfig to change the order of fonts in the builtin config. > > * Other developers: > ** Packagers who owns packages implicitly expects DejaVu is installed > by default will needs to update the dependency for them. > > * Release engineering: [https://pagure.io/releng/issue/10492 #10492] > * 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 == > The migration will be done by updating langpacks. after upgrading and > rebooting, the default font will be Noto instead of DejaVu. Is it safe to delete DejaVu fonts assuming they are not used by any known app? > Since this change aims to switch non-variable fonts to variable fonts, > it may not works with legacy applications as expected such as missing > some variants. in that case, you can install non-variable fonts > packages. the package name will be similar and simply drop `-vf` from > the variable fonts packages. > > > == How To Test == > * This change can be simply tested by `fc-match` command like > `fc-match sans:lang=<your langauge>`, `fc-match serif:lang=<your > language>` and `fc-match monospace:lang=<your language>`. You can > check the expected result from > [https://tagoh.fedorapeople.org/fonts/noto/f36-noto.html the table]. > * Test the text rendering in your favorite application, which use the > system default font. I think this paragraph explains how to test already applied change, but not really how to "test it before it lands"… Do you think it is possible to describe it here? > == User Experience == > Users will see the default font is changed to Noto by this change > except for some languages which has much better quality of fonts. > > == Dependencies == > Only dejavu-fonts, langpacks, and fontconfig are required to update. > Other packages which explicitly has a dependency to dejavu-fonts are > basicaly optional to update. > > == Contingency Plan == > * Contingency mechanism: Revert the relevant packages updated. Also some instructions / automation to revert the change? > * Contingency deadline: Beta freeze > * Blocks release? No > > == Documentation == > None. > > == Release Notes == > The default fonts for most languages will be Google Noto fonts instead > of DejaVu, to keep consistency on the text rendering and to provide > better quality among languages. > > > -- > Ben Cotton > He / Him / His > Fedora Program Manager > Red Hat > TZ=America/Indiana/Indianapolis > _______________________________________________ > devel-announce mailing list -- devel-announce@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to devel-announce-leave@xxxxxxxxxxxxxxxxxxxxxxx > 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-announce@xxxxxxxxxxxxxxxxxxxxxxx > Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx 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@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
