STYLING
Basic custom styling for any Ext.Panel including AutoForm or AutoGrid or even an form field can be done by adding a class attribute to it's element.
Examples:
new Ext.Panel({
cls: 'example-foo'
});
new Kwf.Auto.FormPanel({
cls: 'example-foo'
});
.
$form->add(new Kwf_Form_Field_TextField('foo'))
->setCls('example-foo');