Custom WebUI CSS

Plugin from Wu23333

Overview

A simple plugin for injecting custom CSS into the Unraid WebUI. Supports additional CSS for the Black theme and synchronization of additional asset files (such as background images).

Unraid Simple Custom WebUI CSS Plugin

Only tested on Unraid 7.2+

This plugin provides a simple, persistent way to inject custom CSS globally into the Unraid WebGUI. Allows you to customize Unraid's WebUI. It is built for Unraid 7.2 and later. (For older Unraid versions <=7.1.4, you can use the more powerful Theme Engine plugin by Skitals)

Note that this plugin is NOT a replacement for Theme Engine, it just provide an textarea to input and store a single CSS file then include it in <head> on every page. You need to manage locally by yourself if you have multiple CSS files to switch.

Install

Navigate to Plugins -> Install Plugin and input this URL:

https://github.com/WuSiYu/unraid-custom-css/raw/refs/heads/master/custom.css.plg

Usage and Configuration

  1. Navigate to Settings -> Utilities -> Custom WebUI CSS.
  2. Paste your custom CSS code into the large text field.
  3. Click Apply & Save.

I also provide my own CSS config as an example (see example.css):

screenshot1 screenshot2

Install Custom WebUI CSS on Unraid in a few clicks.

Find Custom WebUI CSS in Community Apps on your Unraid server, review the template, and click Install. Unraid handles the Docker app or plugin setup from the published template.

Open the Apps tab on your Unraid server Search Community Apps for Custom WebUI CSS Review the template variables and paths Click Install

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Details

Repository
https://raw.githubusercontent.com/WuSiYu/unraid-custom-css/refs/heads/master/custom.css.plg
Last Updated2026-07-17
First Seen2025-12-05