Horse contour reference data

Source: The Quick, Draw! Dataset, Google Creative Lab and contributing players.
https://github.com/googlecreativelab/quickdraw-dataset
https://storage.googleapis.com/quickdraw_dataset/full/simplified/horse.ndjson

Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0).
https://creativecommons.org/licenses/by/4.0/

Additional contrast categories: cat, car, dog, cow, from the same simplified
dataset directory and under the same CC BY 4.0 license.

Changes: selected recognized, landscape-proportioned horse drawings and contrast examples; removed
metadata; converted coordinate arrays to point pairs. The scoring engine scales
and horizontally mirrors these references. One original game preset is added.
No endorsement by Google or the original contributors is implied.

This game uses approximate local contour matching, not a general-purpose
semantic classifier. Similar animals and unusual drawing styles may be scored
inaccurately. Sketches never need to be sent to Google or an AI service.