Lots of people prefer to use the black background and white text option for night reading. (blog.the-ebook-reader.com)
This is good news because the current Android app doesn't have the best text options for a large screen since it was designed for use on smartphones. (blog.the-ebook-reader.com)
This way you don't have to bother with zoom and have all the font and text options from the e-book side. (digitaltrends.com)