By default, the product will sit on a white background, but you can specify your preferred background color other than white.
From the customer dashboard (https://pixc.com/dashboard),
Upload the image you need to edit.
Click Next: Select Template
On the Choose Template section, click Create New Template
Under Basic Options -> Background Color, click Other.
Input the hex code of the color you want to use. You can either enter the hex code or choose from the colors available.