The appearance of the product card badge is configured store-wide in the "Product card badge" section of "Settings."
Open "Settings" from the left menu
Open the "Product card badge" section
Configure the following:
Position: which corner of the card the badge is shown on (top left, top right, bottom left, bottom right)
Spacing: depending on the selected position, set the spacing (px) from the top/bottom and left/right edges of the card
Maximum number of badges: the maximum number of badges shown on a single product card (default: 2, maximum: 10)
Shape: choose Square, Pill, Tag, or Custom (selecting "Custom" also lets you set the corner radius in px)
Font size / Font weight: the font size and weight of the badge text
Save
Badge text and background/text colors are set per selling period rule, not on this screen. See "Configure / Edit product card badge" for details.
Depending on your theme, the default selectors may not correctly detect the product card or the badge's insertion point. If so, open "Advanced settings" within the "Product card badge" section and specify the following. It's fine to leave these blank.
Product card CSS selector: a CSS selector identifying the entire product card
Badge container CSS selector: a CSS selector identifying where the badge should be inserted
If you're not sure, please contact support.