Blackout — dark mode for any website
Force dark mode on any website, in one click
What it does
Blackout is a free, no-account browser extension that applies dark mode to every site instantly — with per-site overrides, brightness/contrast/sepia tuning, and an optional day/night schedule. No tracking, no ads, no network requests. Chrome, Edge, and Firefox supported.
A free browser extension that forces dark mode on any website, with per-site overrides, brightness/contrast tuning, and a day/night schedule. Chrome, Edge, Firefox.
Blackout forces a clean dark theme onto every site you visit — with per-site control, brightness/contrast tuning, and an optional day/night schedule. Free, private, no account required. Official store listings are in review. In the meantime, install the exact same buildfrom alainabo.github.io
Does the same job
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Night Eye - Dark Mode on any website2019 · ▲138Enable dark mode on any website using your favourite browser



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Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com

OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 1d ago · opentrailpaper.com

Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 17d ago · simedw.com