by any chance did I just answer your question in the themeforest comments page?
The dimensions of the Anything Slider if using the Anything Slider in the Homepage slider or Feature Header on any page are 960px width by whatever height you set for the Anything Slider in the Slider Control panel.
The dimensions for the Anything Slider if using the Slider Shortcode are whatever width x height you set, since you can vary both attributes in the shortcode settings.
Furthermore, if you create your own page, and then make it your homepage (and this works for all other pages as well), you can then set the Feature Header area to “Text”, and then input the Anything Slider shortcode into the Text area (in our theme text areas accept html and shortcode as well as alphanumeric input) thus creating a feature header slider of whatever dimensions you desire. Now if you set the slider dimension to be small, you would input the column shortcode in the Text area as well, and put the slider into one column, and put other content into the other column(s).
Both the theme and sliders in Striking offer tremendous flexibility, actually often relatively unexplored. We meet both simple and complex needs in Striking.