When you’re using the image swatch field, selected items are highlighted with a grey border.
You can update this using the Customizer – just follow the steps in this article.
Or you can change the colour of the border using this simple CSS snippet:
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| .pewc-radio-image-wrapper label input:checked + img, | |
| .pewc-checkbox-image-wrapper label input:checked + img { | |
| border: 4px solid #ff0000; | |
| } |
You can add this to your theme or child theme’s style.css file or to the Customizer > Additional CSS section.