Many partially sighted people struggle to read text on websites because the size of the font is too small, the colours aren't distinct enough, or because the site requires lots of horizontal scrolling when viewed through a screen magnifier.
People with dyslexia, literacy difficulties, Aspergers and ADHD have similar needs, although the colours they prefer can be very different from those preferred by people with vision impairments.
To help all these people the BBC have come up with a new tool to allow users to change the way text is presented on its web pages. It allows you to change the text size, spacing, font or style, and the text and background colours of all bbc.co.uk web pages.
The tool works on any computer and browser, even on smartphones like the iPhone or Android phones. It's really simple to turn on and does not require any downloads.
And it's completely free.
The BBC have user-tested the tool with many of its target users during its development to come up with a trial version which those users think is really helpful. The BBC are now keen for more people to try the tool and tell them what they think of it before deciding whether it's ready to launch.
So if you or someone you know would benefit from changing the colours on bbc.co.uk web pages, please visit http://bbc.in/iIlQFq (a special link for the trial on bbc.co.uk) and give the tool a try. And, most importantly, let the BBC know what you think of the tool via the feedback form you'll find there.
Jonathan Hassell
Head of Usability and Accessibility, BBC Future Media