(a) The JWST/NIRSpec and MIRI spectrum of Region 1 is decomposed with PAHFIT. (b) Zoomed-in view of the aromatic C–H stretches around 3.3 μm and the aliphatic C–H stretches around 3.4 μm. (c) Zoomed-in view of the aliphatic C–H deformation around 6.85 μm. For the first time, the 6.85 μm complex is resolved into three subfeatures at ∼6.83, 6.86, and 6.88 μm. (d) Zoomed-in view of the aliphatic C–D stretches around 4.65 μm.