Many moons ago I filed issue https://www.drupal.org/node/778050 again Drupal. That didn't go anywhere, because the pager was not pluggable and needed to be database-agnostic.
Happily, Backdrop only supports MySQL, so the pager changes should in theory Just Work™. This means that complicated queries no longer need custom count queries and the database doesn't need to run two queries each time a pager is displayed on the site.
I ran a lot of beanchmarks on the original issue and there was no performance degradation for small tables, and improved performance for large tables. You can see details at http://cafuego.net/2010/05/26/fast-paging-real-world
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There is a Drupal 7 contrib module that "lets the administrator see all administration pages in her preferred language" and which could be ported to Backdrop: https://www.drupal.org/project/...
Allow admin to select admin language seperate from front end language (multilingual)
@stpaultim – You're right: my approach affects also the main menu. I guess, because menus are also considered as user interface (not as content). @findlabnet – If I didn't miss anything,...
Allow admin to select admin language seperate from front end language (multilingual)
Go to the account edit of the desired user. On the horizontal tab below "Region and Language," select "English" or another language. WFM.
Allow admin to select admin language seperate from front end language (multilingual)