True color programs that have superseded programs limited to 256 colors should be recommended, but beautiful images can always be obtained with the old programs. Great artists can do great artworks with limited tools. Quaternions produce very beautiful 3D images, but tend to be closely related, almost look-alike, maybe because only a few artists have worked in this field. There are some very good programs to create such images, and vocations may be encouraged. There are some very good free tools.
Flame fractals are a variety of strange attractors.
They have been used by some artists to create original images. They have been used, for example, in movies. Fractal music is the only non-visual form of fractal art. It is a strange and very productive domain. This mailing list is centered in the discussion of all aspects of fractals as art, including artists, software, galleries, museum curators, art marketers and brokers, printers, art collectors, etc.