Derp Skunk Works

Derp Skunk Works is the pack's test lab, named after Lockheed's famous skunk works because it's where derp-UI tries out half-baked ideas before they earn a real node. In the index it's described as "theme testing and skunkworks prototyping utility," and that's exactly the honest job description: a place to fiddle with the pack's visual parameters and preview new widget styles without building a full node to do it. Part of xcp_derp-UI (search "xcp_derp-UI" in ComfyUI Manager, by lordwedggie), under derpNodes/Utilities.

What it actually does

The node has no sockets - no inputs, no outputs - and its Python side is a do_nothing shell. All the behavior is JavaScript, and it's centered on sliders: the file exposes slider constants with a 0–1 range, 0.01 step, and a 0.5 default, applied across three theme keys - sliderNormal, sliderSmall, and sliderSystem. In plain English: you get sliders that tweak how the pack's sliders look at three different sizes, plus the infrastructure to test new widget styles. The changelog confirms the trajectory - Skunk Works is explicitly wired as the "lab" for the newer Slider V2 style path, where style presets are previewed and saved as reusable JSON.

So the honest use case: you're theme-tuning. You want your normal sliders to be thicker, your small ones less prominent, your system ones a specific color - you open Skunk Works and drag until it looks right instead of editing CSS and reloading. It's the pack's own "skunkworks" for its own UI, exposed to you.

Why a node like this exists

The KB's ui-history.md traces how ComfyUI's interface went from a plain canvas to a place where people customize everything, and packs like this one exist because that urge doesn't stop at colors. Derp-UI's whole pitch is that its nodes can be themed - completely re-skinned, not just tinted - and Skunk Works is where you verify a theme holds up across widget sizes before committing it in the Theme Manager. It's a developer tool wearing a friendly name.

Install

cd ComfyUI/custom_nodes
git clone https://github.com/lordwedggie/xcp_derp-UI-Release

Restart ComfyUI. No pip requirements, no model downloads, no npm step. Manager users: search xcp_derp-UI.

Honest takes

Be clear-eyed about what this is: if you're not a theme-builder or a pack developer poking at derp-UI internals, Skunk Works is mostly a curiosity. It has no data path, produces nothing you can wire anywhere, and its value is entirely as a preview/lab surface. That's fine - not every node needs to move pixels. But it also means this is the one node in the pack you can safely ignore until you decide you want your theme to look right at every size.

And the usual pack caveat applies double here: this is the most internal-facing node in an already young, niche pack with zero third-party documentation. The bundled docs and changelog are the only reference that exists, and for a lab bench that's probably fine - by the time you need Skunk Works, you're already reading the source.