NG_DOC_THEME

Token that can be used to provide custom theme. You must compile your theme to CSS and add it to assets so that NgDoc can load it dynamically.

You always should provide custom themes in root of your application with multi: true parameter.

For example

@NgModule({
   declarations: [AppComponent],
   imports: [],
   providers: [
       {provide: NG_DOC_THEME, useValue: {id: 'CustomTheme', path: '/assets/themes/custom.css'}, multi: true}
   ],
   bootstrap: [AppComponent],
})
export class AppModule {}

Presentation

const NG_DOC_THEME: InjectionToken<NgDocTheme>;