Playing with the style file by GSI
style file from
https://gsi-cyberjapan.github.io/gsivectortile-mapbox-gl-js/std.json
Data specification
https://maps.gsi.go.jp/help/pdf/vector/dataspec.pdf
Layer id: from 761 to 1538 but 772, 790, 807, and 824 are missing. Total 774 layers.
Layers using "case" expression: 805, 1276, 1281, 1284, 1346, 1361 to 1366, 1376 to 1531, 1534, 1535, 1538