You can edit your template to customize your popup content, colors, and images.
From the Edit Rule page, find the Popup Template section and click on Edit Popup. Once you are on the Edit page, you will a lot of options to configure the popup to your taste.
This section contains all the content (text and links) of your popup. If you want to change a text, you just edit it and when you click on Save the changes will display on the preview.
If your template contains an image, you will be able to change it in this section. To do so, click on Update, select your image in your file explorer. When your image is uploaded, the changes will instantly show on the preview
If your template support color, you will be able to change it in this section. To do so, click on the little color square and use the picker to select a color that suits your brand. Once the color is selected, the change will immediately show on the preview.