being a groomer for 20 years I have to stick up for her...all of the dyes and such do not hurt the dogs in any way it either grows out or can be washed out...the brighter colors are more than likely dry jello...thats how they did the horse of a different color in the wizard of oz!
heck, back in the day, my mom rasied teacup poodles when I was a kid, she used to dye her dogs using rit clothes dye..it never hurt them and grew out just fine my brothers used to love to walk the dyed dogs..especially when she dyed them purple my brothers said they met more girls that way! she sold a yellow puppy to a lady from hawaii and the dog was yellow its whole life and it was healthy and happy. mom's poodles were all colors..one was red and one was green for x mas, light colors for easter, orange for halloween she dyed her female red to match her red convertible LOL
one summer a bunch of us girls got bored and dyed one of the rental horses blue using mother's bluing for white clothes he would go out several times a day with little kids who wanted to ride the blue horse we finally had to put him in a box stall so he could rest till the bluing wore off!
I had to figure out how to do a high n tight on a cocker who's dad was in the military I figured it out finally and that dog had a high n tight from that day on LOL
yes, I am one of the "creative" groomers!!!
I need to dig out the pic I have of me walking her purple 3 pound male when I was just a little yard monkey.