Size format is a sequence of commands :
B,K,M,G,T : Show Bytes/Kilo/Mega/Giga/Tera, if this is the first
multiplier it will be considered as the minimum multiplier otherwise it
will be considered as the maximum multiplier
I : binary prefix (use 1024 multipliers)
D : multiplier maximum depth, should be suffixed with an integer (i.e
BTD2 means that if number is in giga will not show further than
kilo)
F : fixed length
Z : if used in the very first position (0) consider leadingZeros, if
at the last position consider trailing zeros if anywhere else consider
intermediateZeros
examples