Same as Fig. 2, but with pulsating stars additionally highlighted as indicated in the legend. The theoretical instability strips for β Cephei and SPBs from Miglio et al. (2007) (dark and light grey shaded areas) and from Moravveji (2016) (red solid and dashed line bordered rectangles), and the instability domain for γ Doradus and δ Scuty variables (from Rodriguez & Breger 2001, light pink shaded area) are also provided for a direct comparison.