Some cjk characters' bottom pixel not aligned.
Steps to reproduce
- use gtk program, such as gnome-terminal, gnome-text-editor.
- set the "Noto Sans Mono CJK SC 12" as the program font.
- enter these four characters "配置直言".
I try other Chinese fonts, they have this problem too. It seems like the characters have a horizontal line at the bottom have the problem.