The Columns option, in which a resource is displayed in multiple columns, is a great feature for readability, especially on wide-screen laptops. However, unlike when Columns are set to None, it adds wasted white space in the form of borders on all four sides of the text. This was probably done for cosmetics (or to look like Kindle), but it would really be nice to have an option to eliminate the white space and have the text go to the edge of the screen or window (as it already does with Columns: None), to maximize use of precious screen space (for those of us more interested in content than aesthetics).
It would also be nice to have this option on iOS devices, where screen space is even more at a premium. (There is excessive wasted margin space on my iPad, but I don't know about the iPhone since I do not have one.)
The last shall be first: Android (which I have on my phone) already has this user-selectable option which (unless I've missed it) is not in Logos for Windows or iOS.