When you choose background images or pick templates, Friday automatically copies any needed files into your current HTML folder.
If you later change the HTML folder, you'll have to manually copy background and other images from the original HTML folder into the new one.
If you only need to copy the background images, simply choose them again in Friday's Settings dialog (choose FAQ, Settings or press Ctrl+S). Choose them from the previous HTML folder and Friday will copy them to the new one.
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