||Change font size
||Use the controls available in the application or else in the operating system to change (increase/decrease) the size of the font. The font size change should apply uniformly on all the book content including the Table of Contents, Footnotes, Page List, Notes and Bookmarks.
||The "Reader options" button is labelled "Aa". This provides for four options of Text Size.
||Change background and foreground color
||Change background and foreground colour (May be through reading system feature or through OS settings).
||The Show reader options button is labelled Aa. This provides for three modes, day (black text on a white background), night (white text on a black background), Sepia (black text on a pale brown background) and Cyan (black text on a pale blue background).
||Use the controls available in the application or else in the operating system to change (increase/decrease) the screen brightness.
||The screen brightness can be altered through display hardware, or via the Windows control panel.
||Apply high contrast system configuration
||The reading system interface and book content except images should respect the high contrast mode (invert colors) if present in the Operating System.
||The main content and dialog items reflect the invert colors setting.
||Magnify the User Interface(UI)
||Use the controls available in the application or else in the operating system to magnify the Reading System screen. All aspects of the User Interface such as Menus, Pop-up Windows, Dialog Boxes and Search Box should get magnified uniformly.
||This can be achieved with the macOS Zoom feature.
||Choose from a selection of fonts, including sans-serif and serif options.
||The Show reader options button is labelled Aa. The dialog provides the ability to select from a variety of fonts, include serif, sans serif and Open Dyslexic.
||Support for SVG
||Check if a image is displayed below this paragraph. This image is in SVG format.
||The SVG image is displayed.
||Enlarge SVG image
||Check if the image given in the previous test can be enlarged.
||The image can be enlarged using the magnification feature of the OS. No feature is provided to change the size of the displayed SVG image within the app itself.