While there is a setting adjustment to change font size within the reading system, the maximum amount available is 170%, which is much less than what is available in a typical browser. One can also disable side-by-side page view, and adjust via page width settings, which can be helpful.
Change background and foreground color
In addition to black text on white background, the reading system provides four additional preset combinations of text color on background color. There is no way to further customize these combinations, however.
Brightness setting is only available within the operating system. The reading system does not provide its own setting.
Apply high contrast system configuration
Neither the reading system interface nor the book content respects the high contrast mode set by the OS. Applying the high contrast setting in the Windows control panel does not carry over to the reading system. It is completely ignored.
Magnify the User Interface(UI)
Reading system works as expected with standard magnification viewers. Tested with Windows Magnifier (available in the OS) and also ZoomText.
In addition to the default typeface, there is an option for three other font styles, which include both a sans serif and a serif font.
Support for SVG
Enlarge SVG image
Using the zoom feature in the reading system does not alter the size of an SVG image (unlike other image types). The image can be enlarged, however, using Windows Magnifier in the OS. There are no other provisions for manipulating the image.