I read this comic in (I think) 2015 but it was way older; somewhere in the late 90s I believe.
It was about a girl who had dark blue hair and could shapeshift into different animals (wolf, gorilla etc.). It had something to do with the full moon I think. The story took place in 2050 or after that. She also had a younger sister with pink hair who, if I'm not mistaken, wore a yellow shirt.
The cover of the comic was bright pink and had an image of the main character.