Please add (and document it somewhere) possibility to have translations to other languages
I have created an app that allowed to translate the client prior to version 2021.9.0.3880.888241. Unfortunately that version has more rigorous checksum checks and Arena is rendered unusable in the process. Modified files are deleted but original ones are not being downloaded.
My project mtgpopolsku.pl was used by many players that don't know any of available languages. My voluntary (and completely free) work was beneficial to you and I even have permission to do so.
Please add a way to translate the interface and card database and to add new language to drop-down menu in settings.
Use `*_extra.mtga` filename template for externally provided data, e.g. "data_cards_extra.mtga" and "loc_Internal_extra.mtga" etc. - those files would include translated strings for additional languages. The file "loc_Binary_extra.mtga" would contain those extra languages to be displayed inside the dropdown.
After client update, if extra languages would be discovered but without translations of strings added by the update, the client could display "Extra Translations Need Update" message and switch automatically back to English. If the client would provide template for updated file, that would be the sweetest icing on the cake :)
Extra feature: You could add Python interface to the client that would send events to a message bus. This way plugins could be developed to have better grip on what the client is doing without the need of full logs. Such interface could also have a `lock/release` mechanism. Say the client has been updated and the translation is out of sync. An external app listening to events could catch it and issue a "lock" on MTGA while trying to fetch updated translation and then "release" the game to continue booting. This way the process could be seamless.