Markdown Studio: Native Markdown Preview Enhancement Plugin for DeepSeek Harness

Markdown Studio is a client-side plugin for DeepSeek Harness, maintained by BioAIEvolu. It takes over the DSH native renderer to integrate Markdown, Mermaid diagrams, KaTeX formulas, and code highlighting into a single pipeline, with fully offline rendering supported. Core features include dual rendering for in-conversation and document previews, a Mermaid diagram toolbar, automatic syntax repair, math formula support, and full GFM compatibility. The plugin uses DOMPurify to ensure safety, supports source/render view toggling and chart downloading, and requires DSH version 0.2.0-rc.2 or later.