🐞 Segfault when using asset catalog colors

从链接的 EditorThemeReproduction.zip 中的 ContentView.swift 开始，使用 asset catalog 中的 NSColor 值（尤其是 NSColor.editorBackground）复现启动时的 segfault。将失败的 EditorTheme 构造与正常工作的 usingColorSpace(.sRGB) 情况进行比较。当 asset catalog 颜色无需显式的色彩空间转换即可定义 EditorTheme，并且复现应用能够在没有 segfault 的情况下启动时，即表示完成。

Description

When creating an EditorTheme from asset catalog colours, a segfault occurs at launch unless the background colour is explicitly cast to sRGB (NSColor.editorBackground.usingColorSpace(.sRGB)!).

To Reproduce

1. Create a new SwiftUI macOS app
2. Add CodeEditSourceEditor as a dependency
3. Add sRGB colors sets to the Asset catalog
4. Use those colors through NSColor to define an EditorTheme (e.g. NSColor.editorBackground)
5. Launch the app
6. Something segfaults
7. If you set the background to NSColor.editorBackground.usingColorSpace(.sRGB)!, it doesn't

Expected Behavior

It should be possible to use colours from the asset catalog to define the theme colours without additional hijinks.

Version Information

CodeEditSourceEditor: 0.15.2
macOS: 15.7.4
Xcode: 26.3

Additional Context

Minimal reproduction project: EditorThemeReproduction.zip (ContentView.swift contains all the relevant code.)

How I'm creating the theme (the asset catalog is included with the above project):

extension EditorTheme {
    /// Creates an ``EditorTheme`` from colors defined in the asset catalog.
    static func fromAssetCatalog() -> Self {
        EditorTheme(
            text: EditorTheme.Attribute(color: NSColor.editorText),
            insertionPoint: NSColor.editorInsertionPoint,
            invisibles: EditorTheme.Attribute(color: NSColor.editorInvisibles),

            // This segfaults:
            background: NSColor.editorBackground,

            // This does not, despite the asset catalog color sets being defined as sRGB
            // background: NSColor.editorBackground.usingColorSpace(.sRGB)!,

            lineHighlight: NSColor.editorLineHighlight,
            selection: NSColor.editorSelection,
            keywords: EditorTheme.Attribute(
                color: NSColor.editorKeywords,
                bold: true
            ),
            commands: EditorTheme.Attribute(color: NSColor.editorCommands),
            types: EditorTheme.Attribute(color: NSColor.editorTypes),
            attributes: EditorTheme.Attribute(color: NSColor.editorAttributes),
            variables: EditorTheme.Attribute(color: NSColor.editorVariables),
            values: EditorTheme.Attribute(color: NSColor.editorValues),
            numbers: EditorTheme.Attribute(color: NSColor.editorNumbers),
            strings: EditorTheme.Attribute(color: NSColor.editorStrings),
            characters: EditorTheme.Attribute(color: NSColor.editorCharacters),
            comments: EditorTheme.Attribute(color: NSColor.editorComments)
        )
    }
}

Screenshots