bits1
decimal0
hex0
base: 2, bounded below at 0 and unbounded above.
Each band steps by its own power of two, and bits per band is the
exponentGap — at 4, the bands are 2^0,
2^4, 2^8 … so eight of them reach 2^28 directly
and the value keeps going past that. A fixed-width bit editor would be a
job for a plain slider; the point here is that the same instrument works
at any width.