Li abundance vs. projected rotational velocity (left) and period (right) for pre-MS (top) and MS (bottom) intermediate-mass stars. The solid and open symbols, triangles, and horizontal dashed lines are the same as in Fig. 5. Top: red and blue symbols refer to IMTTs and Herbigs, respectively. Bottom: darker to lighter contours correspond to the 80th, 85th, 90th, and 95th percentiles of the kernel density estimate, and the stars on the early MS are plotted with black circles (the mean error bars are ∼1 km s⁻¹, 0.05 days, and 0.1 dex for v sin i, P, and A(Li)). The medians of the non-detections are indicated with dotted lines for reference.