HRDs for 3–8 M_⊙, Z = 0.002 models, initialized with a rotation rate of W₀ = 0.5, with different rotation-related controls aimed at increasing blue-loop luminosity. In the top panel, the effects of inclusion of magnetic effects (ST dynamo) in angular momentum (dotted blue tracks) and simultaneously in chemical element mixing (dashed green tracks) are illustrated. In the middle panel, we compare tracks computed with the default value of f_c = 1/30 and a value that is twice as large, f_c = 1/15. In the bottom panel, tracks with f_μ = 0.05 (the default) and a factor of 2 smaller value, f_μ = 0.025, are compared.