Changes/ChineseDefaultFontsToNoto

Chinese Default Fonts to Google Noto

Summary

Changes the default fonts for Chinese to Google Noto.

Owner

• Name: Peng Wu
• Email: pwu@redhat.com
• Release notes ticket: #95

Current status

• Targeted release: Fedora 28
• Last updated: 2018-04-12
• Tracker bug: #1541950

Detailed Description

Chinese has two script variants Simplified and Traditional. Noto font using following conventions - SC means Simplified Chinese, TC means Traditional Chinese.

Changes the default fonts for Chinese to Google Noto. each typefaces will be changed as the following:

• sans-serif
  • Source Han Sans -> Noto Sans CJK
• serif
  • Source Han Serif -> Noto Serif CJK
• monospace
  • Source Han Sans -> Noto Sans Mono CJK

Benefit to Fedora

This changes provides better quality of rendering for Chinese characters and consistencies in look among typefaces.

Scope

• Proposal owners:
  • Update packages with the proper priority of fontconfig config file (adobe-source-han-*-fonts, google-cjk-noto-*-sc-fonts and google-cjk-noto-*-tc-fonts)
  • Update comps

• Other developers: N/A (not a System Wide Change)

• Release engineering: #7271 (a check of an impact with Release Engineering is needed)
  • List of deliverables: N/A (not a System Wide Change)

• Policies and guidelines: N/A (not a System Wide Change)

• Trademark approval: N/A (not needed for this Change)

Upgrade/compatibility impact

N/A (not a System Wide Change)

How To Test

• Check if the default font is changed to Noto
  • run fc-match for sans, serif, and monospace say
• Expected results
  • $ fc-match sans:lang=zh-tw NotoSansTC-Regular.otf: "Noto Sans TC" "Regular"
  • $ fc-match sans:lang=zh-cn NotoSansSC-Regular.otf: "Noto Sans SC" "Regular"

• Check applications, including desktop/toolkit specific and terminals if Chinese characters is properly rendered.

User Experience

will see better quality of rendering for Chinese characters on applications and on desktops.

Dependencies

N/A (not a System Wide Change)

Contingency Plan

• Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)
• Contingency deadline: N/A (not a System Wide Change)
• Blocks release? N/A (not a System Wide Change), No
• Blocks product? none

Documentation

N/A (not a System Wide Change)