Transform map at printer cartridge

A printer cartridge comprising:

• a memory device comprising a non-transitory data storage;
• and
• a transform wrapper stored on the memory device,
• the transform wrapper to dynamically build a transform map for a printer based on metadata stored on the memory device, wherein
• the transform map is a channel map, and the channel map includes a mapping for one of a plurality of colors;
• wherein:
• the metadata is to indicate at least one of a type of depositing material, transform map, print media and printer;
• and
• the metadata includes a recipe, the recipe including instruction to build a channel map based on at least one of a neutral axis, a set of seed nodes and a delta table included in primitive data stored by the printer cartridge;
• wherein
• the neutral axis relates to a line extending from an origin of a three-dimensional color table to a node of the color table farthest from the origin;
• the set of seed nodes correspond to nodes of a compressed color table;
• and
• the delta table is to indicate a difference between an interpolated color table node and a corresponding actual color table.