Config field order applies inside a ui schema only
The rule
Normative: this is the rule
x-config-orderorders config fields ascending; a property whose value is absent or not numeric counts as 0, and ties keep declaration order.- It takes effect inside a generated ui schema only: where no property carries a registered group there is no ui schema, no layout, and
x-config-orderhas no effect on the flat form. - The earlier spelling
x-display-ordercarries no meaning; a schema that still writes only it orders at 0, like any untagged property.
Rule identifiers are permanent and are never renumbered. Each implementation publishes its own standing against these rules; this specification does not.spec 1.0-draft · SCH-31 · changed in spec 1.0