Hello again,
thank you for your answer and your precise tips. I registered on Discord and I hope to share soon my adventures and my translation questions. I also tried to edit the files the way you told me but unfortunately the interface seems to remain almost the same as before. Here is for exemple a pic of land screen after editing and on my resolution (2160 x 1440) :
I am currently trying to edit the "Land" file first by adding a ui scaling factor of 2.0 and the results are quite good (I'm still adjusting values for the top right icon size and position).
I also changed the dialog box text size a bit by editing dialog.ini file because I wasn't able to read the name of the people I was talking to, here are some pics too :
Base config :
After edit :
I hope to complete this soon and then I will humbly try to translate at least some part of the mod in French starting with menus and general UI. By the way I found a very small mistake with a French tavern name in Guadeloupe Port (I think it was there). The name was "LA VIEUX CANON", in French the world "canon" is masculine, so it should be written "LE VIEUX CANON".