Spatial distribution of the surface brightnesses of the 6.2, 7.7, 8.6, 11.0, and 11.2 μm AIBs in the Orion Bar PDR in units of Wm⁻² sr⁻¹, and brightness ratios relative to the 11.2 μm AIB. The analysis utilizes the 7.7 and 8.6 μm bands measured using a local continuum (lc; Fig. 1). θ¹ Ori C is located at the top right of each map. For each map, the color bars span 0.5−99.5% percentiles. The zero pixels, edge pixels, and the two proplyds in black circles seen in the MIRI mosaic, are masked out. The contours trace peak emission for the 11.0 μm AIB (white) and the 11.2 μm AIB (teal). The gray rectangles show template spectra apertures (H ii region, atomic PDR, DF 1, DF 2, and DF 3 from top to bottom); the gray lines delineate the IF and the three DFs (DF 1, DF 2, and DF 3); and the dashed, diagonal white line (top left) indicates the cut across the MIRI mosaic (position angle of 155.79^°).