以下は KanjiVG r20250816 の配布ファイル（kanjivg-20250816.xml.gz）の冒頭にある著作権表示の原文です。
src/data/handwriting-patterns.json は KanjiVG の筆画データを加工したもので、同じ CC BY-SA 3.0 で提供します。
KanjiVG: https://kanjivg.tagaini.net
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Copyright (C) 2009-2013 Ulrich Apel.
This work is distributed under the conditions of the Creative Commons
Attribution-Share Alike 3.0 Licence. This means you are free:
* to Share - to copy, distribute and transmit the work
* to Remix - to adapt the work

Under the following conditions:
* Attribution. You must attribute the work by stating your use of KanjiVG in
  your own copyright header and linking to KanjiVG's website
  (http://kanjivg.tagaini.net)
* Share Alike. If you alter, transform, or build upon this work, you may
  distribute the resulting work only under the same or similar license to this
  one.

See http://creativecommons.org/licenses/by-sa/3.0/ for more details.
This file was generated on 2025-08-16 from the most recent KanjiVG data.