Comment 4 for bug 1460378

The problem here is that wx already provides some RTL support by default, which breaks things (e.g. the canvas coordinate system is inverted, which is why the legacy canvas doesn't render), and these would be showstoppers for translations, leading to a chicken-and-egg problem.

Microsoft test their apps with a special "English-RTL" locale that contains the English strings reversed, and replicating that would be something that even someone not entirely familiar with the KiCad codebase could do.

It should look a bit weird, with texts right-justified, labels to the right of text fields and checkboxes on the right as well, but if it works and is generally usable, then this would mean translators could work on RTL languages.

That's why it's a KiCad bug, not a "someone should translate" request.