One of the great strength of Bryce is its ability to create an almost limitless number of different textures. Nevertheless, there are moments when an image map is the better choice. A an image map is not an UV-map; it is an image that can be tiled; think of floors and walls.
But it is not either procedural or image. Bryce can handle both at the same time. It can mix two images using a procedural or mix a procedural and an image. Again, uncountable possibilities.
This set comes with 19 low, medium and high resolution tile-able images assembled in a Picture Library and separate for easy swapping out one with the other. Including the bonus stuff, there are 30 scene files, 14 videos (3h 08m 57s), 6 HDRI light probes and 4 PDFs in the set.