Foreword

In the philosophy of DeepSeek Harness (DSH), the front-end interface can also be replaced as a plugin. If you don’t want to manually modify web front-end resources but simply want to give dsh web an ocean-blue visual overhaul and add bubbles, schools of fish, and a mascot in the bottom-right corner, you can install dafy-whale-theme. The community directory here is an independent site and has no official affiliation with DeepSeek /幻方.

What Is This

dafy-whale-theme is a DSH web front-end theme plugin maintained by DViridescent. It replaces the entire site interface of dsh web with the “Blue Fat Fish” theme: ocean-blue light/dark dual themes, schools of fish, bubbles, a “Daily Fish Quote” above the input box, a DeepSeek-girl mascot in the bottom-right corner, and a brand replacement in the top-left corner.

The code is licensed under MIT.

Core Features

The verified capabilities are listed below:

  • Ocean-blue light/dark dual theme colors using DeepSeek’s blue brand color.
  • Full-screen ambiance including sea surface halos, rising bubbles, and schools of fish swimming back and forth; the sidebar can be toggled on/off.
  • DeepSeek-girl mascot in the bottom-right corner: single-click to wave and display a random fat fish quote; double-click to pop up a meme image; hover to show the close entry.
  • A scrolling “Daily Fish Quote” above the input box.
  • Brand replacement in the top-left corner with the official whale icon and “Blue Fat Fish” wordmark.
  • Narrow sidebar adapts to screen size without UI clipping.

Installation and Enabling

Official CLI Installation

Installation requires pnpm. This package declares dsh.bundle in package.json and includes the combination layer cordis.patch.yml. Therefore, using the official CLI installation will complete the mounting:

dsh plugin --profile web add github:DViridescent/dafy-whale-theme

This step will install the plugin under the current dsh web profile. After installation, restart dsh web as prompted and refresh your browser (F5). The patch layer only takes effect on the next launch; the web combination disables HMR, so there will be no hot loading.

Automatic Installation via DeepSeek Harness

You can also send the following message in DeepSeek Harness:

Help me install the fat fish plugin from https://github.com/DViridescent/dafy-whale-theme

DeepSeek Harness will automatically complete the installation; after completion, restart dsh web as prompted and refresh your browser (F5).

Upgrade and Uninstall

Upgrades and uninstalls also follow the same official pathway:

dsh plugin --profile web update dafy-whale-theme   # Upgrade
dsh plugin --profile web remove dafy-whale-theme   # Uninstall

Optional: Complete the DeepSeek-girl Animation

The DeepSeek-girl animation is not distributed with the repository due to licensing reasons. If not completed, the mascot automatically falls back to an emoji.

After cloning the repository, run:

node install.mjs

This script does two things: if not already installed, it executes the official CLI installation command above; then it supplements the animation assets into the installed package directory. The script is idempotent and can be executed repeatedly.

Plugin Mounting Structure

The key declarations related to mounting in package.json are:

{
  "dsh": {
    "bundle": {
      "patch": "./cordis.patch.yml"
    },
    "client": {
      "platform": "web",
      "inject": [
        "@deepseek-ai/dsh-client-ui-theme"
      ]
    }
  }
}

This indicates that the plugin targets the web client and injects @deepseek-ai/dsh-client-ui-theme.

Assets and Licensing

The code is licensed under MIT, as seen in the repository’s LICENSE.

Image assets are from community repositories, with per-file licensing details in NOTICE:

  • MIT-licensed assets (whale-girl character, fat fish expressions, memes) are distributed with the repository.
  • The DeepSeek-girl animation source repository has no license declaration; the installation script automatically fetches it from the original repository during installation, and this repository does not distribute it directly.

“DeepSeek-girl” is a derivative creative character based on the DeepSeek brand role. If you plan large-scale commercial use, please assess the brand rights risks yourself.

Applicable Scenarios and Notes

This is suitable for users who want to give dsh web a toggleable and reversible visual ambiance. It is recommended to review the source code and licenses before installation; the plugin will run with the permissions of the current dsh process.

Conclusion

dafy-whale-theme provides a full-site theme for the dsh web front-end: ocean-blue colors, schools of fish and bubbles, daily fish quotes, an interactive mascot, and brand replacement. GitHub repository: https://github.com/DViridescent/dafy-whale-theme. The community directory address is not included in the verified information in this article.