Migrating from @nexus/schema to nexus filtering/ordering issue

[TheoMer]

package.json

"nexus-plugin-prisma": "^0.21.0",
"@nexus/schema": "^0.16.0",
"@prisma/cli": "^2.8.1",
"@prisma/client": "^2.8.1",
"@prisma/migrate": "^2.8.1"

So attempting to import objectType from nexus instead of @nexus/schema flags an error warning on filtering and ordering:

types/models/Colors.ts

import { objectType } from 'nexus';

export const Color = objectType({
    name: 'Color',
    definition(t) {
      t.model.id()
      t.model.name()
      t.model.label()
      t.model.item({
        filtering: true,
        ordering: true,
      })
      t.model.itemvariants({
        filtering: true,
        ordering: true,
      })
      t.model.orderitem({
        filtering: true,
        ordering: true,
      })
      t.date("createdAt")
      t.date("updatedAt")
    },
})

prisma/schema.prisma

model Color {
  createdAt    DateTime       @default(now())
  id           String         @default(cuid()) @id
  label        String?
  name         String         @unique
  updatedAt    DateTime       @updatedAt
  item         Item[]
  itemvariants ItemVariants[]
  orderitem    OrderItem[]
}

How is filtering/ordering now handled in nexus? Also as non-nullable items now need to be explicitly specified do I do so by simply stating for example t.model.nonNull.id()?