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Swift Objective-C Metal Shell Makefile
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Build Status License


Tinkle is a macOS app which appends a visual effect for the focused window changes.
It helps finding the focused window when you switched it by keyboard shortcuts.



You can download from

Supported systems

macOS Catalina (10.15) or later.

Required privilege

Tinkle requires accessibility features in order to detect the focused window changes.

accessibility access

For developers

How to build

System requirements to build Tinkle:

  • macOS 10.15+
  • Xcode 11+
  • Command Line Tools for Xcode
  • create-dmg

Step 1: Getting source code

Clone the source from github.

git clone --depth 1

Step 2: Building a dmg

Execute make command on the terminal.

make package

Tinkle-*.dmg will be generated.


Tinkle users Metal shader to make effects.

playground/Metal.playground helps you if you want to add your own effect.

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