Artist Research: Maria Medina-Schecter

Maria Medina-Schechter uses mycelium, the material used to grow mushrooms. Painting with pigments of organic blueberries, strawberries, raspberries, teas, and coffee.*99
She is an eco-artist and this pdf in the Ecological Citizen is really interesting about her art and approach using what is a living material.
I’m interested in the lightfastness of the natural fruit pigments. Do you have to accept that it is part of your artwork, that it will fade in time? Or are their natural things you can add that prevent the colour fading?
More to ponder on!