Temperature map of A3408. The eROSITA FoV (blue) and r₂₀₀ (dashed white line) are indicated. Left: temperature map with an additional annulus of 4–12 (black) for visualization. Center, temperature map with surface brightness contours generated from the particle background-subtracted and exposure-corrected soft-band image overlaid in black. Right: relative errors for each temperature in the corresponding bin.