She colored his illustrations up until his death.
She is especially notable for coming up with the idea that the Smurfs should be colored blue.
After the death of her husband, she continued to color the comic strips produced by the studio founded by her son Thierry who has been continuing the work of Peyo.She died on 5 July 2016 at the age of 86.
The 2017 film Smurfs: The Lost Village is dedicated to her memory.