DeepSeek Harness appearance toolkit. Independently tune opacity + frosted-glass blur across 8 surfaces (main background, sidebar, cards & panels, inputs & controls, settings, conversation frame, trajectory view, produced/highlights — 9 with dsh-better-sidebar). Use any image or video as wallpaper with a drag-to-pan, scroll-to-zoom position editor and 5 layout modes (Fit/Fill/Stretch/Tile/Center); videos loop muted, survive refresh, and capture a live frame for preview, color extraction and framing. Rotate a pool of images (shuffle/order, every refresh/daily/weekly). Also: PS-style color wheel, one-click wallpaper color extraction, 6 presets + saved profiles, day/night auto switch, and full theme export/import.