Using the style tray
At the bottom of the main document window and the stencil window is a tray which contains style chits for the selected object. The isolated chit on the left represents all of the styles applied to the selected object, while the rest of the chits each represent a single style attribute: fill, stroke, image, shadow, shape, font, and text position. Drag any of these chits to another object, to a group in the Selection inspector, or to a tool in the tool palette, to copy the style there.
Note that the absence of a style, such as having no stroke, no fill, or no shadow, counts as a style; you can for instance apply drag a "no fill" chit to an object to remove its fill.
If you select more than one object, only the styles that those objects have in common appear in the style tray.