The palette list

Under Palette. Each row is a material.

Element

Meaning

Swatch

The colour this material writes. Editable when pinned, otherwise shown greyed.

Name

The material's name

Hex

Exactly what lands in the exported file

Pin icon

Override the generated colour with one you choose

Checkbox

Include or exclude the material

Refresh Palette

Force a rebuild. Not normally needed.

Select Objects

Select every object using the highlighted material

An excluded material stays in the list, greyed and marked excluded, so you can bring it back.