Comparison of ¹²C/¹³C and C/N ratios with theoretical models. Solid green and black lines correspond to first dredge-up (1 DUP) models from Lagarde et al. (2012) and Charbonnel et al. (2017), respectively. The green dashed line represents the minimal values in the model with thermohaline-induced extra-mixing (TH) from Lagarde et al. (2017), while the dashed black line shows minimal values in the model with thermohaline- and rotation-induced extra-mixing (TH+ROT) from Charbonnel et al. (2017). Symbols are the same as in Fig. 6.