Boost Union

Themes ::: theme_boost_union
Maintained by Logo "Moodle an Hochschulen e.V."Moodle an Hochschulen e.V., Moodle Partner, bdecent gmbh, Alexander Bias, Logo "Moodle an Hochschulen e.V."Moodle an HS Doku
Theme Boost Union is an enhanced child theme of Boost which is intended, on the one hand, to make Boost simply more configurable and, on the other hand, to provide helpful additional features for the daily Moodle operation of admins, teachers and students.
Latest release:
3024 sites
85 fans
Current versions available: 4
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Main design principle

Boost Union does not change anything yet and simply behaves as Boost from Moodle core does. Admins can enable and configure only the theme features they need.
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Match the branding color to your facility's design, set different backgrund images for the login page, work with custom fonts, your own logo, favicon, etc.
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Grandchild themes

That way, you can benefit from all the / only the Boost Union features you need, but you can also add additional local features or settings to your local grandchild theme at the same time.
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Motivation for this theme

Boost Union is a theme with many options that can be quickly and easily adapted to your own needs at any time via simply designed interface.
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Former developments

Boost Union is the successor of the popular Boost Campus theme for Moodle 4.x.
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Further Information

Please see README file for details about the usage and features of this plugin.


Presentation of the Boost Union Theme at MUA Townhall Meeting April 2024



No support in the comments section on this page

Please note that we don't provide any support for this plugin in the comments section on this page.

We appreciate your commendation and reviews for this plugin in the comments. For bug reports and support requests, please read the extensive information in the plugin's README file first and create, if needed, a ticket in the bug tracker which is linked below.

Thanks for your cooperation.

For further help, please have a look at the Boost Union thread in the themes forum on


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Logo "Moodle an Hochschulen e.V."
Moodle an Hochschulen e.V. (Lead maintainer): Maintainer
Moodle Partner Contributor
bdecent gmbh: Contributor
Alexander Bias: Maintainer
Logo "Moodle an Hochschulen e.V."
Moodle an HS Doku
Picture of Christian Wolters
Christian Wolters: Contributor
Luca Bösch: Contributor
Please login to view contributors details and/or to contact them

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  • Herb Boeckenhaupt
    Sat, Jan 7, 2023, 10:37 PM
    This is excellent. There should be more "tick-box" controls added to this theme whereby admin can make minor tweaks and alterations to CSS classes, such as removing some of the excessive "white space" between elements on the screen. Of course, things like font-size settings for individually separated elements, re: h3 on the course page, h3 on the lesson page, h3 on the quiz page, etc. as an example. Give us control of individual element on pages vs the globally applied CSS that doesn't allow that.
  • Ira Eickhoff
    Mon, Jan 9, 2023, 8:12 PM
    The new feature of static pages for help and contact are great. It would be even better if there was an option to restrict access to the sites to logged in users and to be able to choose whether or not to display the links on the login page.
  • Marcin Czaja RoseaThemes
    Tue, Jun 13, 2023, 5:31 AM
    Is it possible to use the Flavours on a commercial theme?
  • Przemek Kaszubski
    Thu, Jun 22, 2023, 2:55 AM
    Would be great to know a version for Moodle 4.2 will be out soon smile .
  • Logo "Moodle an Hochschulen e.V."
    Fri, Jun 23, 2023, 3:59 PM
    There will be a 4.2 version soon.
    Otherwise what Alex said applies: commendation and reviews are appreciated her; for issues and requests, please open an issue on
  • herve boris
    Thu, Sep 7, 2023, 5:20 PM
    How where can i Change or customize the color of the section
  • Jan Munoz
    Fri, Sep 15, 2023, 11:49 AM
    Hello, do you have an estimated date for version 4.2? Thanks.
  • Carol Howells
    Fri, Nov 10, 2023, 10:32 PM
    Great theme- does it allow for removal/turn off of the Course Index? Thanks
  • synnac w
    Mon, Nov 13, 2023, 8:13 AM
    Installation reports error:
    Validating theme_boost_union ... Error
    [Error] Required Moodle version [2023042402.04]
    Installation aborted due to validation failure.
    We are current running Moodle at Version 4.2.1+(Build: 20230707).
  • Health & Safety Training Ninja
    Wed, Jan 24, 2024, 9:45 PM
    I have a query regarding H5P content. The theme allows custom css styles, though when testing I believe the css settings only effect the H5P activity module (, not the core H5P content bank version and core H5P activity which is now shipping with more recent versions of Moodle (I think 3.10 onwards). However, I use my own approach to add support for the core H5P content within child themes. My approach adds custom css files, which are self-generated per H5P library that is installed, which gives a great fine-grained approach to css customisation. I have also successfully edited your boost union theme to include support for my approach, and I would like to communicate with your development team to explore the potential of adding this to your theme; and to confirm that your H5P css customisation settings only work with the hvp_mod activity only (and not the new core H5P).
  • Chris Kenniburg
    Sat, Feb 3, 2024, 5:17 AM
    Thank you for promoting the use of grandchild themes. I just saw this and I am looking at converting LearnR to a Boost Union grandchild theme for a future release. You have an outstanding theme with Boost Union!
    Tue, Feb 13, 2024, 8:12 AM
    We are working with this fantastic theme!

    It really is a great advance! Good job!!

    It is the first theme that makes us consider stopping working with Boost + custom css. We greatly appreciate the quick updates with every new Moodle release.

    As new features or customizations we would love to see a set of look adjustment possibilities (widths, heights, gaps, padding, etc.)

    Some new features of the LearnR child theme are very interesting too...
  • Bogdan Voaidas
    Wed, Feb 14, 2024, 5:06 PM
    Boost has some issues with the modal dialog windows.
    They are too small and dropdown lists with many elements, like tags for example, will not fit and you get a double scroll which cancel each other when trying to scroll to see the whole list.
  • P H
    Fri, Feb 23, 2024, 11:06 PM

    I am considering installing your theme, and I would like to follow up on Steve Bilton's post (Wed, 24 Jan 2024, 2:45 PM).

    Does h5p css in your theme apply only to hvp_mod activity and not the new core H5P?
  • Ezzeddin Hamed
    Mon, Mar 4, 2024, 4:23 AM
    It is not just any theme, it is a wonder creator. Thank you
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