This runtime uses MiSans fonts by Xiaomi.
Official source: https://hyperos.mi.com/font/zh/download/
Archive: https://hyperos.mi.com/font-download/MiSans.zip

MiSans is subject to the MiSans Fonts Intellectual Property License Agreement
published on the official download page. It is not an open-source font license.
Installation and use indicate acceptance of that agreement. Do not modify the
fonts or distribute/sell them separately. Review the complete agreement before
redistributing a runtime image containing these fonts.