Styling broken – Can I reset styling to default somehow?

I set the form styling to align the labels left, client didn’t like it and now I cannot get them to align top. I tried to remove and reinstall Formidable and it always remembers the styling but removes the forms…I  would really like to “reset” the form styling back to default that would be best. How would I do this? PS I cannot override the settings and get it to align top either, but can override the size of the fields.