dsh-font

The DeepSeek Harness Web GUI bakes its font stacks and text sizes into the design system: there is no built-in way to swap in a more comfortable coding font, bump the conversation text by a point, or give code blocks a size independent of the surrounding prose. dsh-font adds a single Fonts row under Settings → General with five fields that let you settle all of it in one save.

The two font fields are editors for a small query language rather than plain text boxes: you type to change families and weights, and the completion list is built from the fonts actually installed on your machine. A bad entry is reported under the field instead of silently fixed, so what you typed stays exactly as typed. Three size axes are deliberately independent of each other, so enlarging the body text does not inflate the heading hierarchy or the code surface, and vice versa.

This plugin is for developers who want DeepSeek Harness to read in their preferred typeface and at a size comfortable for their eyes, and for anyone who finds the shipped defaults either too small for long reading sessions or too large for a dense layout. Every value is persisted to the host settings document, survives a restart, and is shared across all browsers pointed at the same instance.