Firstly, I have given feedback on the Chinese fonts before, there is now a problem with the Chinese fonts, some of the text displayed for example the Chinese word for door is “门”, but now the text displayed is the unicode Japanese way of writing door. This means that the fonts used are not really standard Chinese fonts.
Moreover, the font is very thin, which makes it very difficult to read when displaying coloured text in the equipment bar and on the map, especially on the map page, where the inward strokes have been added, making the already thin font even more difficult to read.
I recommend using the Source Han fonts, an open-source font family developed by Adobe and Google with multi-language support. The two main styles, SiYuan Bold and SiYuan Song, are both free and commercially available and follow the SIL Open Font Licence 1.1. This licence means that both individuals and businesses are free to use these fonts commercially without payment or attribution to the original authors, and are free to distribute, share, and even modify and recreate the fonts, provided that the modified fonts are also released under the same open source licence.
Specifically, Source Han Serif supports Simplified Chinese, Traditional Chinese, Japanese and Korean, and includes seven different font weights (ExtraLight, Light, Regular, Medium, SemiBold, Bold, Heavy) to support a wide range of design needs. There is also support for a large number of Western glyphs such as Latin, Greek and Cyrillic, which evolved from Adobe’s Source Serif font.
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