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Emby Css | Themes Portable

Emby's theme engine relies heavily on custom CSS (Cascading Style Sheets)

to modify its appearance. While official "portable" theme files do not exist in a single standard format, the community often distributes themes as portable CSS snippets URLs that can be easily moved between server instances. Core Theme Customization You can overhaul the Emby Web UI by navigating to Settings > Server > Branding and pasting CSS code into the "Custom CSS" field. Monochromic

: A minimalist, content-focused theme designed to work across various screen sizes, often shared as a single GitHub-hosted line for automatic updates. OLED Friendly : A high-contrast theme utilizing pure blacks (

) and flat design to reduce power consumption and improve visibility on OLED screens. Plex/Netflix Styles

: Community-made snippets that replicate the look of other major streaming services by adjusting grid layouts, card shapes, and background masks. State Street Theater emby css themes portable

: A comprehensive theme for desktops and notebooks featuring animated backgrounds and interactive hover effects. Portability and Limitations Theme - OLED friendly, Minimalistic UI - Web App CSS - Emby

Method 3: CSS Injection via Portable Cloud Sync (No USB)

If you prefer not to carry physical media, you can achieve portability via cloud-synced browsers. Install a standard browser (Edge, Chrome, Firefox) and enable sync. However, Stylus and Tampermonkey do not always sync across devices by default. The workaround:

  • Store your CSS files in a cloud folder (OneDrive, Google Drive).
  • On each device, point a local script or extension to load the CSS from a local copy of that cloud folder.

For advanced users, use Dropbox + Symbolic Links to trick your browser’s extension data folder into syncing across PCs. This is a true "portable" architecture without a USB stick.

4. The Deep CSS Tricks (Story of Pain)

You learn painful lessons:

Lesson 1 — Relative URLs in CSS
Emby's custom CSS field expects absolute URLs for images.
Solution: Use data URIs for small assets, or run a local HTTP server alongside Emby just to serve theme assets (messy).
Better: Use base64 embedded background images directly in CSS.

Lesson 2 — Shadow DOM
Emby uses web components. Your .movie-card:hover selector does nothing.
You learn to target emby-cardbutton, paper-icon-button, and #emby-main.
You write CSS like:

paper-drawer-panel 
  --drawer-menu-background-color: #0a0f1a !important;

Lesson 3 — Portable ≠ Persistent
Every time you move drives (D: on one PC, E: on another), Windows drive letters break relative paths.
You switch to using ./ and ../ plus a JavaScript injector that detects the current base URL and rewrites image paths dynamically.

7. The Final Form — One ZIP to Rule Them All

Your masterpiece:
EmbyPortableThemes.zip — 6MB, contains: Emby's theme engine relies heavily on custom CSS

  • Emby portable launcher (modified from portableapps.com version)
  • 5 complete themes with relative assets
  • A batch script that detects OS, drive letter, and patches Emby's internal config.json on first run
  • A README with the deep lore: "This theme travels. Your server travels. Together, you are never home, but you are always at the cinema."

Method 2: Portable User Scripts with Tampermonkey

For advanced portability, you can use Tampermonkey (also available in portable browsers). This method is similar to Stylus but offers more dynamic injection—useful if your CSS depends on the time of day or user login status.

  1. Install Tampermonkey in your portable browser.
  2. Create a new userscript with the @match directive pointing to your Emby URL.
  3. Use JavaScript to dynamically insert a <style> tag containing your CSS.

Example skeleton:

// ==UserScript==
// @name         Emby Portable Theme
// @namespace    http://tampermonkey.net/
// @match        *://your-emby-server/*
// @grant        none
// ==/UserScript==

(function() 
const css = body  background-color: #0a0f1a !important;  .emby-button  border-radius: 20px !important; ;
const style = document.createElement('style');
style.textContent = css;
document.head.appendChild(style);
)();

Because Tampermonkey scripts are stored in the browser profile, they remain fully portable.

Issue 1: Theme works at home but not at a friend’s house

Cause: Different Emby server version or different URL (IP vs domain name).
Fix: In Stylus, change the "Applies to" rule to use regex: https?://(*)your-emby-server(*) to match both IP and domain.