Day- Glo paint was invented by the Switzer Brothers in the 1940's. Robert Swizter had been messing around with fluorescent minerals in a dark room and came across fluorescent color. He sold the substance to magicians to assist in creating illusions. Also later it was utilized for safety reasons, you will often see construction workers in bright orange vests. This girl is wearing Day-Glo on her face, nails and weaved through out her apparel. There is no illusion, she is obviously not wearing Day-Glo to prevent disasters or to be safe in any way.
She's just messing around with minerals.
Take a look at your fine invention hard at work now Switzer Brothers.