Hard key light, no fill, venetian-blind shadows slicing across a desk of case files, grain and gate weave from 1940s film. Acme Pulse is the tireless detective reading every file overnight; the only colour allowed is coral, drawn around the clue. At dawn the blinds open and the film ends in daylight and brand colour.
The blind shadows tilt 4° as someone adjusts them (power1.inOut, 1.5 s) while the lamp swings over the stack of unread dashboard files; the intertitle types in and "Friday." lands on the bar-2 downbeat.
On the drop a light snaps on behind the frosted door: the glass flares from black to lit in 2 frames and the lettering reads in silhouette, the Acme mark first, the name on beat 3; blind shadows drift slowly down.
The camera pans the evidence board left→right under a swinging lamp (±6°, 3 s): cleared suspects stay grey, the coral circle is drawn on the drop on the snare, the string runs to deploy #2231, and the memo slides up asking the human to decide.
The blinds rotate open and the shadows thin to hairlines as daylight floods in from the top-left; colour returns in one beat (teal first), the tagline fades up and Start free lands on the final downbeat.
A detective who reads every file overnight is a warm, human way to describe a background agent, and "only the clue is in colour" makes the anomaly impossible to miss. Risk: noir implies crime and fraud; frame it as a mistake hunt, never wrongdoing, and end in bright daylight.
Adapt to your product: Pin your own screens as exhibits, grey out what your product clears, and draw the coral string from the finding to its root cause.
References: MUBI: Venetian Shadows video essay · PremiumBeat: lighting for film noir · No Film School: venetian blinds in noir