Tool to manipulate and plot data from histograms.
- make modules robust vs. relative imports (maybe it is not even possible)
- rename id (shadows builtin)
- keep order of legend entries (difficult due to dict, probably another setting with list of ids) X Callback Handler
- move output stuff to core.
- do not store provided args in config
- move from json to url args ?key=value&key2=value
- omit load-config arg in config