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diff --git a/docs/site_assets/dozzle/nord.png b/docs/site_assets/dozzle/nord.png
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diff --git a/docs/site_assets/jellyfin/aquamarine.png b/docs/site_assets/jellyfin/aquamarine.png
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diff --git a/docs/site_assets/jellyfin/dracula.png b/docs/site_assets/jellyfin/dracula.png
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diff --git a/docs/site_assets/jellyfin/nord.png b/docs/site_assets/jellyfin/nord.png
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diff --git a/docs/site_assets/nginx-proxy-manager/organizr.png b/docs/site_assets/nginx-proxy-manager/organizr.png
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diff --git a/docs/themes/addons/whisparr/whisparr-4k-logo/desktop.png b/docs/themes/addons/whisparr/whisparr-4k-logo/desktop.png
new file mode 100644
index 00000000..403158b4
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diff --git a/docs/themes/addons/whisparr/whisparr-4k-logo/index.md b/docs/themes/addons/whisparr/whisparr-4k-logo/index.md
new file mode 100644
index 00000000..a1389b54
--- /dev/null
+++ b/docs/themes/addons/whisparr/whisparr-4k-logo/index.md
@@ -0,0 +1,36 @@
+# Whisparr 4K logo
+
+Adds the gold 4K mark to the purple Whisparr logo in the header, mobile menu,
+loading screen, and login page. Supports Whisparr v2 and v3.
+
+![Whisparr 4K logo](desktop.png)
+
+![Whisparr 4K logo in the mobile menu](mobile.png)
+
+## Setup
+
+### Docker mod and Hotio
+
+Add `TP_ADDON=whisparr-4k-logo` to your existing theme.park configuration and
+recreate the container. Separate multiple addons with `|`.
+
+For Hotio, follow the [startup script setup](../../../../setup/index.md#hotio-containers-s6-overlay-v3-images)
+and set `TP_HOTIO=true`.
+
+### Reverse proxy
+
+Add this stylesheet after your Whisparr theme:
+
+```html
+<link rel="stylesheet" href="https://theme-park.dev/css/addons/whisparr/whisparr-4k-logo/whisparr-4k-logo.css">
+```
+
+Inject before `</body>`, as required by the [Whisparr setup](../../../whisparr.md).
+
+### Stylus
+
+Add this import after your theme import:
+
+```css
+@import url("https://theme-park.dev/css/addons/whisparr/whisparr-4k-logo/whisparr-4k-logo.css");
+```
diff --git a/docs/themes/addons/whisparr/whisparr-4k-logo/mobile.png b/docs/themes/addons/whisparr/whisparr-4k-logo/mobile.png
new file mode 100644
index 00000000..5a819d76
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diff --git a/docs/themes/dozzle.md b/docs/themes/dozzle.md
index bfa6ab5a..509cfdbc 100644
--- a/docs/themes/dozzle.md
+++ b/docs/themes/dozzle.md
@@ -37,4 +37,6 @@ proxy_hide_header "content-security-policy";
 
 {% include-markdown "../themes/addons/addons.md" %}
 
-{% include-markdown "../themes/screenshots.md" %}
\ No newline at end of file
+Dozzle v11.0.1.
+
+{% include-markdown "../themes/screenshots.md" %}
diff --git a/docs/themes/jellyfin.md b/docs/themes/jellyfin.md
index 5df498a5..73c48639 100644
--- a/docs/themes/jellyfin.md
+++ b/docs/themes/jellyfin.md
@@ -4,23 +4,42 @@
 
 {% include-markdown "../themes/installation.md" %}
 
-Go to `Dashboard` -> `General` and scroll down to `Branding`
+Choose one method below. Use subfiltering if you want the dashboard
+themed too.
 
-In the custom CSS input field add:
+### Built-in Custom CSS
+
+These screenshots show Jellyfin 12.0.
+
+Open **Dashboard > Branding** and add this to **Custom CSS code**, replacing
+`<THEME>` with a [theme option](/theme-options/). Save your changes.
 
 ```css
 @import url("https://theme-park.dev/css/base/jellyfin/<THEME>.css");
 ```
 
-and hit save.
-
-i.e.
+For example, Nord:
 
 ```css
 @import url("https://theme-park.dev/css/base/jellyfin/nord.css");
 ```
 
-<img src="/site_assets/{{ page.title.split()[0].lower() }}/example.png"></img>
+### Subfiltering, including the dashboard
+
+Jellyfin 12 does not load its Custom CSS setting in the admin dashboard.
+To theme those pages too, use [subfiltering](/setup/#subfiltering) instead of
+the built-in method. Remove any theme.park import from **Custom CSS code**
+and save before switching.
+
+Follow the setup guide for your reverse proxy and inject this stylesheet into
+the web client HTML, replacing `<THEME>` with your selected theme option:
+
+```text
+https://theme-park.dev/css/base/jellyfin/<THEME>.css
+```
+
+Keep injection out of API, media, and WebSocket responses. Subfiltering themes
+both regular pages and the dashboard without a second import in Jellyfin.
 
 {% include-markdown "../themes/addons/addons.md" %}
 
diff --git a/docs/themes/nginx-proxy-manager.md b/docs/themes/nginx-proxy-manager.md
index 47e458a5..fbebe36a 100644
--- a/docs/themes/nginx-proxy-manager.md
+++ b/docs/themes/nginx-proxy-manager.md
@@ -4,24 +4,52 @@
 
 {% include-markdown "../themes/installation.md" %}
 
+The theme targets NPM's React UI, introduced in 2.13.0, and was verified with
+**Nginx Proxy Manager 2.15.1** in both native light and dark modes. Older UI
+versions are not supported by this rewrite.
+
 #### Docker
 
-Download the script from the theme.park repo `docker-mods/nginx-proxy-manager/root/etc/cont-init.d/98-themepark` and save it on your host.
+For the official `jc21/nginx-proxy-manager` image, download the
+[theme.park startup script](https://github.com/themepark-dev/theme.park/blob/master/docker-mods/nginx-proxy-manager/root/etc/cont-init.d/98-themepark)
+and make it executable:
 
-Mount the file to `/etc/cont-init.d/98-themepark` like so:
+```bash
+curl -fsSL https://raw.githubusercontent.com/themepark-dev/theme.park/master/docker-mods/nginx-proxy-manager/root/etc/cont-init.d/98-themepark -o 98-themepark-npm
+chmod +x 98-themepark-npm
+```
 
-```yml
+Add the script mount and theme settings to your existing NPM service:
+
+```yaml
+    environment:
+      TP_THEME: organizr
     volumes:
-      - /your/save/path/98-themepark-npm:/etc/cont-init.d/99-themepark
+      - /your/save/path/98-themepark-npm:/etc/cont-init.d/99-themepark:ro
 ```
 
-```bash
-    -v /your/save/path/98-themepark-npm:/etc/cont-init.d/99-themepark
-```
+Use the absolute path where you saved the script. Keep your existing NPM ports,
+data volumes and other settings. Recreate the container after adding the mount
+or changing a theme setting. Restarting the same container does not replace
+stylesheet links already inserted into its HTML.
+
+This image uses the mounted startup script, not the LinuxServer `DOCKER_MODS`
+environment variable.
 
-!!! Warning
-    Make sure the file is executable! `chmod +x 98-themepark-npm`
+| Variable | Default | Purpose |
+| --- | --- | --- |
+| `TP_THEME` | `organizr` | Theme option name, such as `aquamarine` or `nord`. |
+| `TP_COMMUNITY_THEME` | `false` | Set to `true` for a [community theme](/community-themes/), such as `catppuccin-latte`. |
+| `TP_DOMAIN` | `theme-park.dev` | CSS host, without a scheme. Set this when self-hosting theme.park. |
+| `TP_SCHEME` | `https` | Scheme used to fetch the CSS. |
+
+The script inserts two stylesheet links: the NPM base CSS and the selected theme
+option. Both must load. If the theme does not appear, check the container logs,
+the script's executable permission, and the browser's stylesheet requests.
+The CSS host must be reachable from your browser.
 
 {% include-markdown "../themes/addons/addons.md" %}
 
-{% include-markdown "../themes/screenshots.md" %}
\ No newline at end of file
+NPM 2.15.1 with sample hosts and the rewritten theme.
+
+{% include-markdown "../themes/screenshots.md" %}
diff --git a/mkdocs.yml b/mkdocs.yml
index 4da5b1da..4d255301 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -157,6 +157,7 @@ nav:
         Prowlarr Darker: themes/addons/prowlarr/prowlarr-darker
         Prowlarr Text Logo: themes/addons/prowlarr/prowlarr-text-logo
       Whisparr:
+        Whisparr 4K Logo: themes/addons/whisparr/whisparr-4k-logo/index.md
         Whisparr Darker: themes/addons/whisparr/whisparr-darker
         Whisparr Alternative Calendar: themes/addons/whisparr/whisparr-alt-calendar
       Organizr: themes/addons/organizr/index.md
@@ -307,6 +308,8 @@ extra:
       Prowlarr Text Logo:
         path: themes/addons/prowlarr/prowlarr-text-logo
     whisparr:
+      Whisparr 4K Logo:
+        path: themes/addons/whisparr/whisparr-4k-logo
       Whisparr Darker:
         path: themes/addons/whisparr/whisparr-darker
       Alternative Calendar: