Roboflow-themed UI; threshold default 0.3; ViTDet/RF-DETR detector toggle (boxes/segments); direction arrows

Offside line = furthest-forward marked defender; exclude arms/hands via MHR keypoints

Restore ViTDet-H detector + extract its Mask R-CNN masks (replace RF-DETR for detection)

Part A: RF-DETR-Seg detect (boxes+masks) + reconstruct only selected players at Build

VAR offside visualizer