Look

Declarative visual presentation for instances of this class. Value is typically an instance of look.ResourceView, look.PackageView, or look.PublisherView (from kanonak.org/look@1.0.0) declaring the bands that compose the page. Class-hierarchy override is first-declared-type-wins (same semantic as transformation discovery); per-instance override replaces. Coexists with `derivations` — custom transformations declared in `derivations` win for the specific (format, variant) pairs they cover; `look` covers everything else. Used by the universal look renderer in kanonak.org/universal-look to produce HTML/CSS/SVG without publisher-authored transformations.