The theme for versions 19.11 and 20.05 of the manual are different all the later versions of the manual. Update so that they use the same theme - would provide a more consistent experience for site visitors.
Change to theme made for 1911 and 20.05: * 19.11 - commit: https://gitlab.com/koha-community/koha-manual/-/commit/39a216490605aad808a2f8b0dbd7c14630a7b031 * 20.05 - last commit (x3 - original + 2 follow-ups): https://gitlab.com/koha-community/koha-manual/-/commit/3a2cce486fb4204ed8d7e8f319f59afe312abb03