The easiest way to use available screen space is to use a two-colum layout when is viable, as you can see in this mockup I made combining the page background color settings and the page border settings in a signle row (UI text is in spanish).
The easiest way to use available screen space is to use a two-colum layout when is viable, as you can see in this mockup I made combining the page background color settings and the page border settings in a signle row (UI text is in spanish).