CJK characters rendering issue with sans-serif fonts

[maximilionus]

About

As stated in the issue title, rendering of some CJK (Chinese/Japanese/Korean) characters with sizes within the stem-darkening range will be partially corrupted with Sans-serif fonts. It is currently unknown what is causing this problem.

Suggestion

This issue can probably be solved by disabling the hinting for all CJK fonts with a special fontconfig entry, but this solution seems a bit hard-coded and would completely disable stem darkening for these fonts. There has to be a better way.

Screenshots

• Sans-serif issues:

  Replicate:

  pango-view -t 你好 --font 'sans'
  

• Serif:

  Replicate:

  pango-view -t 你好 --font 'serif'