See it under Format > Show section. Otherwise splide markups apply which require some fields added below.

I understand, and realized it might confuse you, mostly due to limited space in consideration :)

However you can hover over the form item and detailed descriptions should be revealed after clicking the question work.

Alternatively, right click the Settings to the right of that Views style, choose open in a new window/ tab, and you will have all descriptions revealed once in a separate page.

In short:
It is all about managed vs. unmanaged output, yet, hence only the content of the slide, not the entire containing markups which must still stick to the working grand design.

Vanilla is plain output, as is, no special output is managed by this module, aka you are on your own. Useful for advanced needs that this module cannot facilitate, for users when this module's output does not make them happy.

The only requirement for Vanilla is View mode in formatter context, or Content, not Fields, in Views context with which you can re-arrange things -- image, caption, title, link, etc. on your own discretion, and outside that Splide form. And this module will just print your own expected output via that View mode, or Content output.

If you want easy route, disabling Vanilla is the best choice. The module will output consistent markups with pre-designed choices.

Tips:

• Go Vanilla if you have more time, and more advanced needs. It is an exciting adventure.
• Avoid Vanilla if you are busy, and happy with the module's managed output. It is a measured journey with known and consistent output.

Suggestions and patches are welcome for improvements.

Thank you.

Automatically closed - issue fixed for 2 weeks with no activity.