Figure 1
From: Topological nature and the multiple Dirac cones hidden in Bismuth high-Tc superconductors

Electronic structure of KBiO3:
(a) along high-symmetry paths in the first BZ, as indicated by the red arrows in (c) for the crystal structure (b). The width of the red and green colored bands shows the weight of Bi s- and p-orbitals, the two light-yellow areas mark the band-inversions of this system.