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Blocks: Accessibility

Maintained by Picture of Hittesh Ahuja Hittesh Ahuja
Provides options for changing text size and colour scheme. Settings can be saved to persist between sessions. Also integrates ATbar from Southampton University ECS.

The block allows users to customise Moodle to their visual needs.  It supports changing of text sizes and colour schemes.  Customisations save to the user's session, allowing them to persist between pages, and can also be saved to the database allowing them to apply permanently.

The block also integrates ATBar from Southampton University ECS. This provides extra tools and customisation options, including dictionary lookup and Text-to-speech.  Visual customisations performed with ATBar don't currently persist, and can be used as well as or instead of the block's own customisations.

Please dont report bugs here

If you experience an error with the block, or would like to request a feature, please use the "Bug Tracker" link below.


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Picture of Hittesh Ahuja
Hittesh Ahuja (Lead maintainer)
Picture of Mark Johnson
Mark Johnson: Original maintainer
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  • Picture of Hittesh Ahuja
    Fri, Mar 21, 2014, 10:38 PM
    Hi Mark,
    Is this block compatible with the Clean Theme i.e Twitter Bootstrap version ? From what I see , it only affects the Header and the footer for now ( clicking on A+ for eg., expands only these 2 regions ) .
  • Picture of Bradly Spicer
    Mon, Jun 23, 2014, 6:31 PM
    Hi, having a few issues with the plugin. Whenever I change the theme and then try and 'reset' the webpage to revert the changes. Nothing happens. I've tested with multiple different theme options. Only way to fix it is to uninstall so it deletes the database entries.

    I've tried the comment method in database.php. Still doesn't work.

    Any suggestions? Thanks
  • Picture of Mark Johnson
    Mon, Jun 23, 2014, 6:55 PM
    Hi Bradly,
    A new developer is currently working on many fixes to this block. If you download the latest version from GitHub[1] you may find that your issue is fixed. If not, please report the bug there, and hopefully Hrvoje will be able to assist.

    Many Thanks

  • Picture of Matthew Koelling
    Tue, Jul 1, 2014, 6:15 AM
    Hi Mark

    Was curious if this plug-in worked in 2.7+
  • Picture of Alex Ferrer
    Tue, Nov 18, 2014, 7:55 PM
    I have a local installation of Moodle 2.8 and the plugin does not work. Is it my fault or you need to upgrade the plugin?

  • Picture of Hrvoje Golcic
    Fri, Jan 16, 2015, 6:46 PM
    Dear Matthew and Alex, the new version of a plugin published today 2.2.2 works with 2.8 now. Have fun!
  • Nora Colazzo
    Thu, Apr 2, 2015, 10:20 AM
    This is a great plug in. We installed this in Moodle 2.7 and works well however, the ATbar doesn't work for students when in an activity. We ticked "always" when launching but only works in teacher role or higher. I've tried to tweak settings but can't seem to find the root of the problem. Would be great to have a solution as the text to speech is fantastic for learners with difficulties in reading. I welcome your advice smile
  • Picture of Daniel Neis Araujo
    Fri, Jul 24, 2015, 10:00 PM

    this is a very nice block! It works very well besides the fact that you have to add the block to every page.
    To avoid this, I've made a version of the clean them in high contrast mode (it has a custom frontpage, but you can remove it ;)
    It is on github:

    Kind regards,
  • Picture of David Mudrák
    Wed, Aug 12, 2015, 11:17 PM

    I am happy to announce that Hittesh Ahuja is the new maintainer of this block as per the agreement at

    Good luck Hittesh and thanks for you work on this!

  • Picture of Luis Herrera Noguera
    Thu, Sep 17, 2015, 6:26 AM
    Hi, Does it work with Moodle 2.9??
  • Picture of Hittesh Ahuja
    Thu, Sep 17, 2015, 12:37 PM
    Hi,theoretically it should work with 2.9 .however it would be a great help to the community if you could try and let us know if there are any issues with it.
  • Picture of Sarah Ricketts
    Wed, May 25, 2016, 7:13 PM
    Hi, has anyone had success in using this plugin for V3.0 or v3.1 and is there an intention to officially release an update before Sept 2016 to work with 3x? Many thanks.
  • Picture of Sya Rahim
    Fri, May 27, 2016, 3:24 PM
    Hi, I am using this plugin for Moodle 2.9. I was wondering if we could change the A contrast icon as a text 'Contrast 1' etc. because our user might not know what A means?
  • Picture of Mark Johnson
    Tue, May 31, 2016, 4:41 PM
    Sarah, Hittesh and I have are discussing plans for the next release of the plugin. I would hope that we can have an updated version out before September, although I can't commit to any particular date as this is currently a "spare time" endeavor for me.
  • Picture of Mark Johnson
    Tue, May 31, 2016, 4:43 PM
    Hovering over the icon should display a description of what each button does. There's currently no mechanism for changing the displayed text per-button (only chaning the A to a different character/string throughout by overriding the language string).
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