Definitions of symmetry terms used in text. (a) Basic symmetry motions between design repetitions. (b) Key types of counterchange and color alternation between design repetitions.
Isbell, William H.; Uribe, Mauricio I.; Tiballi, Anne; Edward P. Zegarra, 2018, "Visual database", https://doi.org/10.25346/S6/1B33FN.