What the bits of a link hold:
strings
stringRefs
coordinates
styles
colors
frame
background
structure
What the bits of a link hold:
strings: the texts of the map, e.g. labels, popups and its title, in one compressed block;stringRefs: where each of them is used;coordinates: the positions of the elements;styles: the styles of the elements and of the legend;colors: the palette of the colors that the styles use;frame: what a shared map shows when it opens;background: the background map;structure: all others, e.g. the types of the elements, flags, keys, counts, and the bits that fill the last character.