Coul you update the dimensions of the "Homepage Image" field in the "Action Item" content type?

Currently, a standard install of the action item puts the Homepage Image size at something smaller than the full width of the main content area, which creates an image that does not fill the space at the top of the page. If you set the Homepage Image size at 670 pixels wide by 300 pixels tall, the standard install would produce images that fill that space.