Theme Config

theme config controls class slots, variants, color mode, and dynamic class resolution.

Schema shape

export const usersSchema = {
  resource: "users",
  theme: {
    preset: "default",
    engine: "tailwind",
    colorMode: "inherit",
    classNameMergeStrategy: "merge",
    classNames: {
      tableWrapper: "shadow-sm",
      tableRow: "transition-colors"
    },
    variants: {
      actionButton: {
        primary: "bg-blue-600 text-white hover:bg-blue-700"
      }
    },
    classNameWhen: [
      {
        slot: "tableRow",
        when: { key: "status", operator: "equals", value: "suspended" },
        className: "bg-red-50 hover:bg-red-50"
      }
    ],
    classNameResolver: "theme.resolveClassName"
  }
} as const;

Properties

Property	Type	Purpose
`preset`	`"default" \| "tailadmin" \| "shadcn" \| "custom"`	Base class preset.
`engine`	`"tailwind"`	Supported theme engine.
`colorMode`	`"inherit" \| "light" \| "dark"`	Root color mode behavior.
`classNameMergeStrategy`	`"merge" \| "override"`	How schema classes combine with preset classes.
`classNames`	object	Slot class overrides or additions.
`variants`	object	Variant classes used by action buttons.
`classNameWhen`	array	Conditional classes by slot and condition.
`classNameResolver`	string	Registry class name resolver key.

Defaults

When omitted, theme normalization resolves:

preset from theme.preset, or from the root adapter, or default.
engine to tailwind.
colorMode to inherit.
classNameMergeStrategy to merge.