Only note files (.note) have layer data. Other file types do not have layer data.
Field
Type
Description
layerId
number
Layer ID: - -1 background layer: cannot delete, cannot rename, cannot reorder, cannot set as current layer, can set visibility - 0 main layer: cannot delete, cannot rename, can reorder, can set as current layer, can set visibility - 1-3 custom layers: can delete, can rename, can reorder, can set as current layer, can set visibility
