This add on adds a High Contrast Toggle switch to your website to assist accessability.
Use the colour pickers in edit mode configure some basic theme default color override options. Advanced users can add their own css styles. The toggle switch is then displayed on the website and allows the user to switch to high contrast mode at their convenience.
The plugin uses a cookie to rember the viewers visiblilty choice in the event of repeat viewings to your website. This add on is best utilised within a stack or dragged onto a global area. Although you can also drag it in page by page if you wish.