Radial dust profile of X7 from tip to tail in 2018 and 2019. We rebinned the L-band NACO data to match the pixel scale of the NIRC2 data, i.e., 10 mas. The profile is measured from the tip to the tail, and shows a clear increased dust emission at the back of the bow-shock source. In contrast, the emission of the Doppler-shifted Brγ line does not follow the profile shown here, but appears to be swapped. In other words, the ionized Brγ gas shows a higher intensity at the tip compared to the back of the bow-shock source X7. We refer the interested reader to Figs. 5 and 11 in Peißker et al. (2021b).