assets/fonts/cjk.ttf (Japanese, Chinese, Korean) = Liberation Sans (SIL OFL 1.1, LICENSE-Liberation.txt) + Droid Sans Fallback
(Copyright (C) 2008 The Android Open Source Project, Apache License 2.0: https://www.apache.org/licenses/LICENSE-2.0),
merged by tools/fonts/make_cjk.py.