Text improvements for CJK Text -- With this feature enabled it make the correct font for Simplified Chinese wrong, specifically, it applied the Japan style font to it (see it in the pic).

I addressed that this is the font fallback fault and I tried to add a "font-family: PingFang SC" and the font is correct after that.

So fix this error and also add a feature: could select CJK font individually.

ENV: Mac Safari