    /// <summary>
    /// Represents the configuration settings for a theme.
    /// </summary>
    public abstract record ThemeConfig<TColors> where TColors : ThemeColors
    {
        public TColors Colors { get; init; }
        public LayoutConfig Layout { get; init; }
    }

    /// <summary>
    /// Represents the default configuration settings for a light theme.
    /// </summary>
    public record ThemeConfigLight : ThemeConfig<ThemeColorsLight> { /* ... */ }

    /// <summary>
    /// Represents the default configuration settings for a dark theme.
    /// </summary>
    public record ThemeConfigDark : ThemeConfig<ThemeColorsDark> { /* ... */ }