Technology1 min read

Window Sweaters

By · Published by Everything Blog

In short

The tool features bespoke borders for 37 popular applications across Apple, Microsoft, and creative toolkits, while generating automatic zigzag designs for other programs by sampling icon colors. Users can tweak pattern styles, stitch sizes, and border widths from a dedicated menu bar interface or through local configuration files. Because it relies on macOS Accessibility permissions and private window APIs to monitor focused windows, borders temporarily hide during resizing, and future updates might impact stability.

Key points

  • The application supports macOS 13 or later across both Intel and Apple Silicon hardware c…: The application supports macOS 13 or later across both Intel and Apple Silicon hardware configurations.
  • Unlisted programs receive procedurally generated knit patterns derived directly from thei…: Unlisted programs receive procedurally generated knit patterns derived directly from their application icon colors.
  • Reliance on private macOS window APIs means future operating system updates could break t…: Reliance on private macOS window APIs means future operating system updates could break the software.

Sources checked by our analysis pipeline: 1

A little Mac app I made to give my windows sweaters. 🧶 Knitted borders, colours inspired by your favourite apps, and a cosier desktop.

You can just send this repo to your coding agent and ask it to install Window Sweaters for you:

Install Window Sweaters on my Mac: https://github.com/saragordic/window-sweaters

Or install it yourself with Homebrew:

brew trust saragordic/tap

brew install --cask saragordic/tap/window-sweaters

Then open Window Sweaters from your Applications folder.

You can also grab the latest ZIP from Releases, unzip it, and drag Window Sweaters.app into Applications.

If macOS blocks it, open System Settings → Privacy & Security → Open Anyway after trying to launch it. The app isn't notarized by Apple yet. Apple's instructions explain this step.

Click the yarn icon in your menu bar to change the style, pattern, border width, and stitch size. You can also pause the sweaters or quit from there.

To leave an app bare, open Apps and untick it. Its windows lose their sweater straight away, everything else stays as it is, and it stays off until you tick it again, even…

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