deepseek-harness-background

The stock DeepSeek Harness Web GUI is clean but visually flat: a fixed white or black canvas that offers no personal layer during long coding sessions. The deepseek-harness-background plugin fills that gap. Upload a local image or paste an image URL, and a custom wallpaper renders behind the entire app surface with live in-panel preview and auto-persisting settings that survive restarts.

Five stepped sliders give fine-grained control: wallpaper opacity, readability scrim, panel transparency, frosted-glass blur radius, and wallpaper blur itself. The scrim is theme-aware, switching to a white veil in light mode and a black veil in dark mode so text contrast is always preserved. Fit modes cover and contain let you choose between fill-and-crop or show-the-whole-image. When a background is active, a curated set of floating surfaces, including composer cards, message bubbles, code blocks, agent task strips, and chrome buttons, gain a frosted-glass treatment with specular sheen and backdrop-filter blur, while dialogs, menus, tooltips, and other reading surfaces keep their official opaque paints so nothing legible turns washy.

The plugin also exposes a third-party glass registry via a published bridge (window.DSH_BACKGROUND_GLASS global and the dsh-background-glass:ready event). Other plugins can register their own panels into the same frosted-glass system with zero runtime dependencies, and the entire bridge tears down cleanly when this plugin is removed. On dsh 0.1.2-rc.1 and later, the timeline enhancement adds smooth glide scrolling to the official conversation rail, respects prefers-reduced-motion, and stands down entirely while the kernel is still paging unloaded turns.

It is well suited to developers who want a warmer, more layered workspace during daily coding, and to plugin authors who would like to reuse the same glass visual language for their own UI panels.