This seems to work in custom CSS for removing the unwanted meta info on the index pages where multiple posts display - but it does not work for the single posts in Sparkling. Any ideas?
I hope you are well today and thank you for your question.
You can remove the category for the single posts in Sparkling theme by adding the following CSS code in the Custom CSS option of your theme on the below path.
Admin Area -> Apperance -> Theme Options -> Other -> Custom CSS