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RainbowSpeak (虹语) — rainbow marquee border for the DeepSeek Harness chat composer plus 小虹, a window-resident ba-ji-ball companion pet (five playable characters) driven by the host's authoritative turn boundaries.

Live FX and market ticker above the composer, with trend charts, per-market session status and a frozen-rate currency calculator. 输入框上方的实时汇率跑马灯，含走势图、交易时段与汇率计算器。

DSH marquee request-changes: drag a rectangle inside the right sidebar, annotate each region, and send them as one message carrying its notes, its text, and a host-side freeze-frame of the screen.