DEFAULT means the layer will always be displayed like a background
layer, but it is dependent on MIN/MAXSCALEDENOM
ON means that if it is requested via the LAYERS=... that it can be
displayed again dependent on MIN/MAXSCALEDENOM
OFF means it will be ignored by the mapserver CGI even if its in
Yesterday I came across this section
https://mapserver.org/optimization/mapfile.html#layers
and I don't understand the status behaviour and MIN/MAXSCALEDENOM
it say:
For every layer in a Map File that has a status of ON or DEFAULT, MapServer
will load that layer and prepare it for display,
