BITS_PER_SAMPLE_GREYSCALE_1 top-level property
The constant used by TAG_BITS_PER_SAMPLE. See JEITA CP-3451C Spec Section 4, Differences from Bilevel Images
Implementation
// ignore: non_constant_identifier_names
final Int32List BITS_PER_SAMPLE_GREYSCALE_1 = Int32List.fromList([4]);