To upload and display your own header image, follow these steps:
- Go to WEBSITE TAB > Theme.
- Click on the "preview and customize" button for the current template.
- In the new customizing window, on the left side you have the editable features. Go to the "Header Image" section and click on it.
- Scroll down to the bottom of the existing header images, until you see the "Upload file" button and click on it.
- Upload the header image from your computer. Keep in mind that the dimensions of the header are 880 pixels in width per 180 pixels in height, so ideally you will want to make sure you upload an image that looks the way you want at these dimensions. You can also crop a bigger image to fit the dimensions.
- Click on the "Save & Apply" button at the top in the upper left corner.
You can also watch a short tutorial about this process here.