Once you turned on Safari reader mode (which you can do by tapping the three-line button on the left side of the address bar), the only customization option available was zooming or shrinking the font size. If you wanted a different font or a new background color, you were out of luck.
But now that iOS 9 is here (and yes, I think it’s safe to say you can upgrade now), Safari reader mode has gotten a lot more … well, reader-friendly.
Once you make the leap to the new iOS and tap the reader mode button, you’ll see a series of new customization options.
Finally, you’ll be able to change fonts in addition to font sizes. A total of eight fonts are available, from Athelas to Times Roman. (I’m partial to Georgia.)
You can also choose from four backgrounds: white, off-white, gray and black. Personally, I’m thrilled that a black background is finally available, meaning it’ll be easier to read the web at night without bothering my snoozing wife.
Keep in mind that Safari’s reader mode button is available on most web articles, but not all; in some cases, the button won’t appear on certain mobile-optimized pages.