Histograms of FIP bias values from regions linked to extrapolated magnetic fields originating from 412 chromospheric wave packets, at assumed coronal heights where FIP bias is observed: (a) 10 Mm and (b) 30 Mm. The distributions are based on 404 intersecting regions (open: 124, closed: 280) at 10 Mm and 250 regions (open: 111, closed: 139) at 30 Mm reflecting height-dependent connectivity. Blue represents regions connected through open fields, while yellow indicates those connected through closed fields.