Gift Cards Pro → Giftcard standard Templates holds the classic voucher designs and the gift items. Click Add New: give the template a title, upload the images for the three styles (Style 1, 2, 3; the customer can switch between them if Can customers choose voucher styles? is enabled), choose View mode (grid or list on the front end), assign a Giftcard standard Category and publish.
Standard templates are used by [wpgv_giftcard_standard]; the customer enters a free amount between the configured minimum and maximum.