Light Leak Wipe

A cinematic scene change: a warm anamorphic light leak blooms across the frame on a diagonal, and where its edge passes it wipes from scene A to scene B with a chromatic (RGB-split) fringe riding the seam. The leak is bound to a single animated `@property` custom property, so it rests off-frame during the holds and only flares during the two wipes — a genuinely seamless A→B→A loop.

Swap the two scene blocks for your own title cards (or footage stand-ins) and tune the leak colour and timing at the top. Drop it between any two shots.