Autoscale when maxval or minval are missing ?

[ederag]

As requested, here is a separate issue for maxval.

One usually wants to fix the colors scale,
but the first time trying DynamicGrids on a new problem, it could make sense so have an autoscale,
just to see that the simulation is running properly.

With the current setting, if the cells are all above 1, the image stays white (except happily the frame number).

A proper documentation of maxval (or clims which would be fine indeed) might be enough.
But it might also be handy when the relative morphology is more important than the absolute values.

If it is worth the trouble (please do close if not),
then one might also want to fix one end (e.g. minval=0)
and let the other one adjust (e.g. with maxval=nothing).

[rafaqz]

It's not much trouble, this is a few lines of code :)

The question is more about adding complexity and what "least surprise" will be. I think you may be right about first time least surprise being to just autoscale, like Plots.jl will do.