jslegendre-themeengine ☆
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Description:
App to edit compiled .car files
Type: Cask  |  Latest Version: 1.0.0,119@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: System utilities
Tags: macos theme utility developer design
Install: brew install --cask jslegendre-themeengine
About:
ThemeEngine is a macOS utility designed for inspecting and modifying compiled Asset Catalog (.car) files. It provides a graphical interface to browse the contents of these files, allowing users to extract assets, modify colors, and tweak other design elements. This tool is invaluable for developers and designers looking to customize or theme macOS applications without access to the original source assets.
Key Features:
  • Graphical interface for browsing .car files
  • Ability to extract and modify individual assets
  • Support for editing colors and other properties
  • Live preview of changes
Use Cases:
  • Customizing the appearance of macOS system UI elements
  • Theming third-party applications
  • Inspecting Asset Catalogs for reverse engineering or learning purposes
Alternatives:
  • Asset Catalog Tinkerer – Similar functionality for inspecting assets, but ThemeEngine offers more direct modification capabilities for .car files.
Version History
Detected Version Rev Change Commit
Aug 5, 2025 2:20pm 1.0.0,119 0 VERSION_BUMP 02f42b95
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