colorset file using names, just like the macOS 10.13 SDK. The application lets you create files containing colors and variants, just as an Asset Catalog File, while the framework allows you, in your application, to retrieve colors from the. ColorSet & ColorSetKitĬolorSet is both a macOS application and a macOS Swift framework, ColorSetKit. If you need to support macOS 10.12 or below, Apple's official recommendation (as seen during WWDC18) is to actually hard-code colors using conditional platform-detection code.
It basically means you'll have to drop support for macOS 10.12 and below. Unfortunately, this feature is only available for applications running on macOS 10.13 and later. While the following won't change, as the color components are hard-coded: let color = NSColor( deviceRed: 1, green: 0, blue: 0, alpha: 1 )Īpple provides a nice solution, relying on Asset Catalog files.Īs of Xcode 10, you can create custom colors in Asset Catalogs, identified by a name, and optionally containing variants for a specific UI theme or device. This is a system color, so everything is handled automatically by AppKit: let color = NSColor.textColor While built-in AppKit UI elements handle this perfectly, an application often relies on custom controls, custom drawing code, or at last custom colors.Īs an example, the following code will perfectly react to the dark mode. RationaleĪs of macOS 10.14 Mojave, Apple introduced a system-wide dark-mode.Īpplications linked with the macOS 10.14 SDK now need to react to system appearance changes. ColorSet is a macOS utility and framework allowing developers to manage custom interface colors with ease.
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