You mean it’s built with scaleform and can be modified with a process similar to one described here? Or a .gfx file has to be exported, edited and streamed back?
Edit:
So far I’ve tried using grep on fivem codebase to “follow the data”. When not using steam, what you type in “Player name” in fivem’s connection settings is displayed in that top corner of the map.
So I started with the string ‘Player name’. Went like this:
'Player name' --> #Settings_Nickname --> ext/cfx-ui/src/app/settings.service.ts --> gameService.nickname
I was hoping I could find all the code where that piece of data is used calling some sort of native or something, but I’ve found nothing of the sort.
I’m really out of ideas now. 