[Kdenlive-devel] Kdenlive localisation

[Jean-Michel Pouré]

Dear friends,

I would like to translate Kdenlive into French.
The current French maintainer agrees to pass over.

My question is:

I cannot find some string in the current .po file.

For example : 

1) Kdenlive main widget
English : Transition (???)
French : Tra_nsition (with shortcut on n)

2) Kdenlive main widget 
English : Effect stack (???)
French : liste _des effets (with shortcut on d)

It seems that part of the translation comes from another .po file.
Could it be mlt?

Where should I look for the complete .po files?

Kind regards,
Jean-Michel