No I didn't ! Sorry.
Now I know that you have to place in :
/home/your_user/.Lazarus/userscheme
I can't find it anywere then for the off chance I click save button in
Tools -> Options and then Environment -> Editor -> Display -> Colors
And click the export button the one with the diskette logo.
That give me the path. Sorry to explain like that , I know it's simple but it was frustrating and waste a lot of time so if this can help anyone in my situation ...
Thanks anyway for your reply !