Mockup A — post-ADR-126 LookTab root

What's new vs today

• MATERIAL section gains 3 sub-bands: existing 8 preset chips, then a 3-column TextureGridPicker for inventory materials, then a Recently-used row of mini-thumbs.
• Inventory grid uses material spheres, rendered with the same per-cell chrome as the texture library — same primitive, different content type.
• Two link buttons below MATERIAL: + New Material… opens ADR-127's MaterialAuthorCreator modal; Edit PBR ▸ opens the nested PBR Params Editor (Mockup B).
• TEXTURE row gains Advanced UV ▸ + All Properties link buttons — both always shown per ADR-128.
• Footer unchanged in this mockup — see Mockup E + F for the proposed ADR-117 footer revisions (user-facing labels + cost-detail flyover).

Primitives in use

• FaceSelector, ColorPickerFull, ChipRow (presets), TextureGridPicker, TextureThumb, IconButtonStrip, LogRadialPad, LinearXYPad, RotationDial, SliderWithReadout, Checkbox, MediaCard.
• Zero new primitives introduced.

Not shown

• The MEDIA card body — same chrome as today, not changed by ADR-126.
• The collapsed/disabled state of MATERIAL when on a UV-mapped imported mesh — see Mockup G.