For activities which have a specific language setting, it would be much better to have by default the language selected in the main configuration (the application language) instead of "your system default".

"Your system default" should be only available from the main configuration...

Example: if the operating system is in english, but user wants the application in french, and sets it to french in main configuration page, all the activities should be using french unless if another language is specifically selected.
For now user would have to manually select french in each activity, which is not user friendly.