The right to pay heavy taxes should not be denied to anyone, regardless of physical ability. John knows how important that is. His selection of Dijit was a good one here, because it handles a lot of the A11y details (A11y = A + 11 letters + y, a standard abbreviation).
One a11y consideration is low vision. Usually this is overcome by high-contrast color schemes. Dijit automatically detects this condition, and renders the page accordingly. You can simulate this by merely changing the body class from "tundra" to "a11y":
/* GeSHi (C) 2004 - 2007 Nigel McNie (http://qbnz.com/highlighter) */ .geshifilter {font-family: monospace;} .geshifilter .imp {font-weight: bold; color: red;} .geshifilter .kw1 {color: #b1b100;} .geshifilter .kw2 {color: #000000; font-weight: bold;} .geshifilter .kw3 {color: #000066;} .geshifilter .coMULTI {color: #808080; font-style: italic;} .geshifilter .es0 {color: #000099; font-weight: bold;} .geshifilter .br0 {color: #66cc66;} .geshifilter .st0 {color: #ff0000;} .geshifilter .nu0 {color: #cc66cc;} .geshifilter .sc0 {color: #00bbdd;} .geshifilter .sc1 {color: #ddbb00;} .geshifilter .sc2 {color: #009900;}Graphic embellishments, like gradients, are eliminated so as not to blend into the important text. And all graphic symbols are placed with clearer text ones, as in the Title Pane: