Support for CJK is provided by the Droid Sans "fallback" font

Support for CJK is provided by the Droid Sans "fallback" font. This
font contains over 43,000 glyphs and includes support for Simplified
Chinese (GB2312), Traditional Chinese (Big 5), Japanese (JIS 0208) and
Korean (KSC 5601). This font uses the Simplified Chinese ideographs for
shared Unicode code points.