Accessibility Switch

The technology guy for the NY Times posted some thought about an issue that had not crossed my mind, "But What About the Color Blind?". I think that browsers should come with some default accessibility option. I do not mean the complicated range of options available now, but a simple on/off switch. This switch would automatically reformat all websites in some easy to read, high contrast and nice looking style, something that uniformly addresses the widest range of accessibility issues. For more advanced users, they could leave all the tweaks available now. For those who prefer simplicity, this accessibility switch could make a huge difference in the quality of internet life. Such a feature on publicly available machines, at kiosks or in computer labs for example, would allow anyone to make the web accessible with the touch of a single button. I suspect that the technology exists already. There is something called a style sheet that controls the look and feel of a web site. All it would take is a web designer could develop a style sheet with the characteristics listed above and the browser designers incorporated a single button that strained all web content through that style sheet.