Image element widgets

<element>
   <image>radio2</image>
   <width>radio-width</width>
   <height>radio-height</height>
</element>

<!-- ... -->

<dim id="radio-width">10</dim>
<dim id="radio-height">10</dim>

Specifying an element with a image creates a new theme widget which is an x::w::image widget. This is equivalent to invoking the factory's create_image() method.

The value of the image element is the first parameter to create_image(), the image file. The values of optional width and height elements are ids of dims in the them file. They are only used when the image is an SXG file and specifies the size the SXG image gets scaled to.