Fig. 7. Results for the inverse-design of an excitonic system with (i) a low energy gradient, (ii) high transfer efficiency and (iii) large total distance between the first and the last site. (A) Optimization traces averaged over 25 individual optimization runs, indicating the average required number of designed systems to achieve one, two or all objectives. (B) Illustrations of sampled excitonic systems achieving one, two or three objectives. Arrows represent transition dipoles with their location and orientation to the principal axis. (C) Excited state energies of the systems depicted in (B). The overall energy gradients are reported in the legends.