Use `Axes` property

There is a custom parameter Axes. It contains axis names and tags. It is required for variable font export and does limit the available coordinate fields in the master and instance settings.

[schriftgestalt]

That the wight class of the masters and instances is not in sync is one of the reasons that I still have a “beta” badge on the export settings dialog.

[schriftgestalt]

the format of the Axes parameter:

{
	name = Axes;
	value = (
		{
			Name = Weight;
			Tag = wght;
		},
		{
			Name = Width;
			Tag = wdth;
		}
	);
}