src-import.3.1 Highlighting for Namespace Attribute

[AlexXuChen]

Given the following snippet, assuming foo.xsd exists in the same directory:

<xs:schema xmlns:xs='http://www.w3.org/2001/XMLSchema'>
	<xs:import namespace='BAD_NAMESPACE' schemaLocation='foo.xsd' />
	<xs:element name='foo'></xs:element>
</xs:schema>

the following behaviour will occur:

which throws src-import.3.1: The namespace attribute, 'BAD_NAMESPACE', of an <import> element information item must be identical to the targetNamespace attribute, 'null', of the imported document.

It would be better if the namespace attribute value was highlighted instead of the current default.