Currently, to find which styles are associated with a campaign, you would have to review each campaign individually.
If you'd like the ability to easily see the styles associated with a campaign in the styles section (Whitelabel>Styles), reach out to your CSM and they'll submit Product Feedback on your behalf. Product Feedback will inquire with the development team if a feature can be added to the development roadmap.
If further assistance is required, submit a ticket to Punchh Support. (For help submitting a ticket, click here)