Changing the background of the preview window
While the white background is how the document would be exported to many formats, if you're making art for a format that supports alpha, you might like a background in the preview window that lets you actually distinguish transparent regions of your canvas. Fortunately, Pixen provides this, including access to all your normal templates and the ability to set alternate backgrounds.
To set the preview window's background:
Click the action gear in the preview window.
Click Set Background...
Choose the backgrounds you like.
See also
Working with the preview window
Working with backgrounds
Preview Topics