Thermal properties of the mini-filament eruption. Left: EUI HRI_EUV 174 Å brightenings that appear during the mini-filament eruption. Their representative positions are marked by black boxes that include flare ribbons (a–b), mini-filament footpoints (c), footpoints of the ambient loops (d), and the interaction region between the erupting mini-filament and nearby ambient loops (e). Right: DEM curves of the regions highlighted in the left panels before (10:48:45 UT; black) and during (red) the eruption. Gray and orange lines show the 100 MC simulations.