Yes, I believe it left quite a bad taste in the mouths of many a small software house. At least those trying to compete against them with a "software" paint brush,
There were literally dozens of companies selling digital paintbrush software in the 80's, for everything from your PC, Atari, Commodore, Sinclair, PC or Mac, right through to more advanced or specialist computer systems used in gaming, 3D rendering, simulations, military etc.