⟨[X/Fe]⟩-T_C trends of all the stars analysed. Giants are plotted with blue triangles, subgiants with red squares, and MS stars with green circles. Filled symbols indicate planet hosts. Each planet host subsample is shown against its corresponding comparison subsample (e.g. GWPs vs. GWOPs) with an offset of −0.15 for the sake of clarity. The offset between giants, subgiants, and MS samples is −0.75. For guidance, the derived slopes are shown in the plots (units of 10^-5 dex/K). The left panel shows the ⟨[X/Fe]⟩-T_C trends when all elements (volatiles and refractories) are taken into account, whilst the right one shows the ⟨[X/Fe]⟩-T_C trends when only refractories are considered.