How to Turn Off Unwanted Validation Colouring?

So I have validation set on for a few of my fields, but not for the majority.

However, when I submit a form, I am getting lots of green colours and ticks for fields that I haven’t set any validation for… see below for details.

How can I turn this off?

(Note there is no validation on the Server Action side either…)

Best wishes,
Antony.

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