DeepSeek Harness Plugin: dsh-background-swapper

`dsh-background-swapper` is a DeepSeek Harness plugin aimed at addressing the monotony of the interface. It supports custom backgrounds, image library management, and fine-tuning of interface transparency and effects (such as Tint and Blur). Users can upload, rename, or delete photos, choose presets (such as Glass) or make adjustments with sliders, and save custom appearance combinations. The plugin is released under the MIT license, is easy to install, stores data in a local directory, and is suitable for users who want to create a personalized workspace or manage wallpapers uniformly.