CHROME EXTENSION

DMG Mode

Browse the web in four shades of green. One shortcut redraws any page like a classic handheld LCD.

What it is

DMG Mode is a Chrome extension that snaps every pixel on a web page to a 4-shade palette, so news sites, shops and search results look like they're running on an old green-screen handheld. Images go chunky, text switches to a pixel font, and the page still works as normal underneath.

It's free and open source. It collects nothing, makes no network requests and runs no remote code.

See it in action

Prefer YouTube? Watch it there.

What it does

3 PALETTES

DMG pea-green, Pocket grey and Greyscale, with brightness and contrast sliders and an invert option for dark sites.

PIXELATED IMAGES

Chunky 2–12 px blocks on images, video, canvases and CSS backgrounds. Text stays sharp.

PIXEL FONTS

Swap page text to the bundled Pixelify Sans (readable) or Press Start 2P (classic 8×8). Icon fonts are left alone.

STAYS ON

Follow the tab to new pages and sites, or remember a site so it turns on every visit. Settings sync across your Chrome installs.

Quick start

1. Clone the repo:

git clone https://github.com/Zapskii/dmg-mode.git

2. Load it in Chrome. Open chrome://extensions, turn on Developer mode, click Load unpacked and pick the extension/ folder inside the repo.

3. Pin DMG Mode to the toolbar, open any page and press Alt+Shift+G (or use the popup). Rebind the shortcut at chrome://extensions/shortcuts.

How it works

The extension adds one inline SVG filter to the page and applies it as a backdrop-filter on a fixed, click-through overlay the size of the viewport. The filter adjusts brightness and contrast, turns colour into luminance, then snaps each channel to the palette's four values, so every pixel on screen is an exact palette colour.

Only what's on screen is filtered, so very long pages stay fast and the layout is never touched. Fixed and sticky elements and iframes are recoloured too. The README has the details and known gaps.

! ALL-SITES ACCESS IS OPTIONAL “Stay on as this tab browses” and “Remember for this site” need Chrome's all-sites access, which DMG Mode asks for the first time you use them. Without it, the extension only touches the page you switched it on for.

GET THE CODE

Not affiliated with or endorsed by any console maker.