Preview of the dwarf optical cutouts, multi-resolution MFS H I overlays and velocity fields. The full figure with all the H I detections are shown in Fig. A.1. The left panel shows the optical three-colour postage stamp of each dwarf, the middle panel shows the H I contours overlaid on the FDS (DECaLS for FCC 323) optical image where the blue contours show the 11″ H I emission above 3σ in steps of and the green and red contours show the 3σ H I emission from the 21″ and 41″ images. The lowest column density sensitivities are labelled in accordance with the local rms over a 25 km s⁻¹ line-width and the synthesised beam for each resolution are shown in the bottom left inset with their respective colours. The right panel shows the 21″ H I velocity field. The systemic velocity is the thick white contour with the value shown up the top and the synthesised beam is shown in black on the bottom left.