Azimuthal ROIs now show discrete grab handles on the selected ROI: the inner/outer arc (resize Q/d) and, for a sector, the two phi edges (rotate). Editing is by clicking a handle, with a generous tolerance, which fixes the previously near-impossible phi-edge grab. Clicking the (large) interior of an azimuthal ROI now only selects it and lets the view pan, instead of capturing the gesture. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>