One of the great strength of Bryce is its ability to create an almost limitless number of different textures. Nevertheless, there are moments when a picture texture is the better choice. A picture texture 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 18 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 32 scene files, 13 videos (2h 58m 30s), 6 HDRI light probes and 4 PDFs in the set.