dsh-conversation-flat

The default DeepSeek Harness web chat follows a centered narrow-bubble pattern borrowed from instant-messaging apps: wide empty margins on both sides, right-aligned user bubbles, no sender label on assistant replies, and Markdown tables floating as small centered cards. On a large display this feels both wasted and unfriendly to long-form reading. dsh-conversation-flat is a CSS plugin that replaces that layout with a full-width, document-flow reading experience.

It stretches the conversation column to fill the entire content area. User messages become full-width, left-aligned rounded bars instead of compact right-aligned bubbles. A subtle grey DeepSeek sender label appears above every assistant reply. Markdown tables expand to the full column width and align with the surrounding text rather than shrinking to content. Starting from v0.3.0, a Personal Profile section in the settings panel lets you set a display name and upload an avatar; both appear above every one of your messages. The avatar is auto-cropped and compressed to 128×128, and when no image is set a colored initial badge is generated from a name hash, adapting automatically to light and dark themes.

Everything is implemented with pure CSS rules plus a single idempotent DOM injection, all side effects registered through the plugin lifecycle. Disabling or removing the plugin in Settings restores the page completely with zero residue. The plugin is ideal for Harness users who find the default bubble layout too cramped or too sparse, especially developers who prefer a read-a-document feel over a chat feel and want their messages to carry a personal identity.