Haha thanks !
The quotation ? You mean Clippy's phrases ? It's just randomly chosing strings in an array (or dictionary i don't remember wich I used) and making them a label's text.
For the window, Godot's "WindowDialog" node has a "Resizable" option, so I just had to style the window, the rest was handled by the engine :)
Yeah I may have made a tiny lie...