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The WenQuanYi bitmap fonts are maintained here: http://wenq.org/wqy2/.
The u8g2 fonts are based on the bdf files from here: https://github.com/larryli/u8g2_wqy
From the font files:
WenQuanYi bitmap fonts include all 20,932 Unicode 5.2 CJK Unified Ideographs (U4E00 - U9FA5) and 6,582 CJK Extension A characters (U3400 - U4DB5) at 5 different pixel sizes (9pt-12X12, 10pt-13X13, 10.5pt-14x14, 11pt-15X15 and 12pt-16x16 pixel). Use of this bitmap font for on-screen display of Chinese (traditional and simplified) in web pages and elsewhere eliminates the annoying "blurring" problems caused by insufficient "hinting" of anti-aliased vector CJK fonts. In addition, Latin characters, Japanese Kanas and Korean Hangul glyphs (U+AC00~U+D7A3) are also included.
From the font files:
Copyright: (C)2004-2010, WenQuanYi Project
Board of Trustees and Qianqian Fang
License : GPL v2 (with font embedding exception)
