class="form-control"

[e404r]

class="form-control". how to change default

[travist]

You will need to add a new template to the renderer using the Formio.use(...) method like so.

import { Formio } from '@angular/formio';
Formio.use({
  template: {...}
});

The contents of the template will be your custom template that overrides the classes of the rendered form. Please see https://help.form.io/developers/form-development/form-templates for examples on creating new templates.