Reduces the size of the full screen serialized size from 40k -> 13k.
Note that the `zlo` crate (which doesn't appear to have a repo
on github any longer; sources are only found in the crates.io
documentation source view), employes zigzag encoding of all integers
and floating point values and takes the size down to just under 10k.
A todo is to follow up on that and see if we could adopt the same
scheme in varbincode.