Cluster-Decorated Lieb Lattice: A Convenient and Reliable Platform for Tuning Flat-Band EnergyRemoveH. T. Li, W. L. Fan, Z. X. Zhang, R. G. Yan, T. Z. Ji, S. Y. Wang, L. Sun, G. Chen, B. F. Miao, and H. F. DingPhys. Rev. Lett. 137, 176401 (2026)