Hello,
To increase the size of only the “Style” attribute swatches (without affecting others like color or size), please follow these steps:
Go to Products > Attributes in your WordPress dashboard > click Edit on the Style attribute
There you’ll find options to change the swatch size specifically for that attribute.
Here’s a screenshot for reference: https://prnt.sc/ljD2nAEcYE4c
This way, only the “Style” attribute will have larger swatches, while the others will remain unchanged.
Best Regards,