It reads three ways at once: a typing cursor, a command-line prompt, an unfinished sentence. Together they say: the system is always still writing. The verdict you have now is the one we have so far — calibration is ongoing.
The underscore is the only piece of UI animation in the wordmark. It blinks at 1Hz on dark surfaces; it sits steady on Paper.
When an icon is needed, it's a 24px line icon, stroke 1.5, in currentColor. Filled icons and color icons are not allowed in the system. We are deliberately icon-poor.
Persona ID is two-digit zero-padded, in Syncopate, on the persona's color. The number reads as a council seat — like a juror. 01_SOCIOPATH in transcripts; the chip in avatars.
When a persona is generating, text appears character-by-character with a red cursor. The moment generation completes, the cursor stops. Don't decorate finished text with this animation.