Regarding that test case, consider resizing the button explicitly or
just use the CJK string "我是方框。", since the button by default has a fixed
size.
In https://github.com/AOSC-Dev/aosc-os-abbs/issues/224, JeffBai
(github:MingcongBai) found out that using pango does fix the problem.
The pango
** Description changed:
libgdiplus' cairo backend only takes the fontconfig *match* to render
glyphs in cairo, with zero considerations for substitutes. This causes
significant problems when a developer using WinForms tries to display
some CJK glyphs in "Sans", while expecting system-like
