In the R-stuido ide, it is very nice to provide the apperance tab for us to customize the ide.
There is no one font to balance the chinese fonts and english fonts. Therefore, if set the chinese and english into a same font, it give a very weird feeling.
R-stuido is a wonderful Ide, but it just provide one option for editor font. It is little inconvient for Chiense users. Because they have nesscessary to write Chinese in the ide editor.
Therefore, I recommand the Rstudio provide a choice for Chinese users to set the font for chinese words.
Further, bi-language problem in R-stuido is common problem. If r-stuido can provide a choice for international users to set the fonts for their native words. I think it is a vert good improvement.