The ledger

AFK placard with a tasteful sleeping-moon SVG animation, breathing BRB title, and desaturated gradient mesh that signals "paused". Atelier-only, prefers-reduced-motion respected.

Subscribe / follow / donation celebration-overlay layer for the live broadcast page. Listens for `oa-event-celebrate` window events and slides a branded animated card into the scene with platform-coloured chrome, a confetti burst, optional TTS read-out, and per-platform SFX. Queues up to 16 events; honours reduced-motion. Mount-time gated by `theme.event_celebration.enabled`. Closes the polish gap to Streamlabs / StreamElements / Neuro-sama-grade event handling.

Editorial chapter card for between-segments transitions ("1 / 3 — Coding session"). Twin-band gradient mesh, oversized chapter index, slow horizontal wipe transition. Calm, intentional, premium.

Catalog of Live broadcast scene modes — VRM fullscreen + static placards (starting-soon / be-right-back / outro). Each scene declares its voice + render cost so the page knows whether to attach the SFU and the admin can warn on GPU-less hosts.

Administrative toast for AI-driven mod actions on the live scene. Listens for `oa-mod-action` window events and paints a muted lower-left card with an inline Undo button. Separate from the celebratory overlays — visually neutral on purpose.

Polished farewell placard with social-handle pills, optional next-stream timestamp, Solar Amber Subscribe CTA, and Plasma Cyan gradient mesh distinct from the warm starting-soon family.

Shared placard primitives — Atelier-themed gradient mesh, brand watermark, social pills, BGM "now playing" pill, countdown clock. Used by starting-soon / be-right-back / outro / intermission.

Engagement poll overlay for the live scene page. Listens for oa-poll-opened / oa-poll-vote / oa-poll-closed window events and paints a Q+A card with growing option bars + linear countdown + winning-option highlight on close. Optional per-platform colour theme.

Channel-point / SuperChat redemption toast for the live scene page. Listens for `oa-redemption-triggered` window events and paints a per-platform branded card ("🎁 ViewerName redeemed «Evil Laugh»"). Separate from the EventCelebrationOverlay (which handles sub/follow/cheer); this one is the dedicated viewer-trigger surface.

Animated 2D backdrop renderer for vtuber scenes — color / image / video / preset modes plus parallax layers, atmospheric particles (snow / cherry-blossoms / embers / dust / rain / stars), and drift (slow-pan / Ken-Burns). Pure CSS keyframes, no canvas, no WebGL — runs at ~0% GPU on the no-GPU broadcaster host. Reduced-motion strips every animation.

Polished pre-roll placard with Atelier gradient mesh, animated countdown to start_at_ms, brand block, and "now playing" pill. Atelier-only colours, calm motion, prefers-reduced-motion respected.