This is a useful link that returns all the accessibility-related trac tickets.
Existing Trac Tickets (Bugs) that aren’t Fixed.
12825 – Text resizing in Firefox – Raised 3 years ago(!) this one talks about the fact that WP admin screens don’t always look very clever when text is resized by user. Whilst most areas are OK, the buttons and toolbar at the top of the page are fixed-height and so text-spillage occurs. I don’t think everyone realises that zooming and resizing text are not the same thing and suit different people.
20294 – User password field missing label – Looks like some work was done for 3.5 but it appears it was never implemented.
21289 – Custom Menu builder – Raised last year but turned out to be duplicate of 14045 and linked to 22485. Ticket 23119 (see also below) is covering the rework of Custom Menus and design is still being debated hotly. Need to keep eye on this one as Custom Menu Builder has never been accessible since first introduced.
21334 – Accessibility of Quick Edit Panel – Raised last summer, and is getting some attention now. Have suggested (amongst other things) that quick edit panel might be always visible as a result of switch in Screen Options, but kind of nervous about that. Could do with some further accessibility input (ie not just mine). The issue about whether certain links should be permanently visible coming in here as well – cf Skip links at top of page.
22104 – High contrast admin colour scheme – Raised in the autumn, and some debate ensued. However nothing really happened about this. Do we want to get behind this? Is there one high-vis theme that would work for all?
22606 – Keyboard issues selecting a background image in Theme Customizer – Seems there is a fix for this, but need to test.
22682 – More keyboard issues with Theme Customizer after page refresh – Some action but has been downgraded in importance just before Christmas.
22933 and 23195 – Keyboard tab order in edit screens – Fix is now available that makes tabbing more consistent allegedly. But I haven’t been able to test this.
Trac tickets covering UI work
23119 – UX improvements to nav-menus.php – A LONG ticket with much debate. Difficult to work out exactly what is being proposed for accessibility here. One ticket proposed that accessibility option like widgets should be included – and apparently the stubs for that code are actually in the menu builder and may be used if js not available. Cyndy pointed out within ticket that drag and drop, and even using arrow keys to move items is not really any good for blind people. But would that be an option if there was sufficient announcing (using ARIA live regions?) to allow context to be voiced? And is it OK to just use the arrow keys for this – when users might expect something different to happen? And what about users on tablets using AT like VoiceOver?
New tickets required?
Add Media Functionality – don’t believe this is keyboard accessible (inc screen readers), nor easily accessible by speech recognition software either. But haven’t had chance to test yet.