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JankyBorders is a lightweight macOS utility that draws configurable borders around application windows. Its main purpose is to make the focused window immediately visible, especially in tiling window-manager setups. Active and inactive windows can use different colors, gradients, glows, widths, and border styles. Most focus detection works without the macOS Accessibility API, although an optional accessibility mode improves compatibility with certain window-management tools. Applications can be included or excluded through whitelist and blacklist settings. Border appearance can be changed at runtime, and the project integrates easily with yabai, AeroSpace, Homebrew services, or a dedicated configuration file.
Features
- Active and inactive window borders
- Round, square, and uniform styles
- Solid, gradient, and glow colors
- Runtime appearance updates
- Application whitelist and blacklist controls
- yabai and AeroSpace integration
Project Samples
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DesignLicense
GNU General Public License version 3.0 (GPLv3)Follow JankyBorders
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