It's probably fine for English, because it has only 26 characters with simple stroke. But for CJK, it will be a real problem. Some characters like 病, 歸 hava far

It's probably fine for English, because it has only 26 characters with simple stroke. But for CJK, it will be a real problem. Some characters like 病, 歸 hava far more horizontal/vertical lines compare to English characters. 12px is already bad, 10px/8px will be totally unreadable. Fun fact: windows actually have different font size in setting page depends on which language you are using. For most Western languages, it is 12/10, but for cjk, it is 14.