Terminal UI V2, advanced binding

src/ConsoleApp/FileTime.ConsoleUI.App.Abstractions/ITheme.cs

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+using TerminalUI.Models;
+
+namespace FileTime.ConsoleUI.App;
+
+public interface ITheme
+{
+    IColor? ItemBackgroundColor { get; }
+    IColor? AlternativeItemBackgroundColor { get; }
+    IColor? SelectedItemBackgroundColor { get; }
+    IColor? MarkedItemBackgroundColor { get; }
+    IColor? MarkedAlternativeItemBackgroundColor { get; }
+    IColor? MarkedSelectedItemBackgroundColor { get; }
+    IColor? DefaultForegroundColor { get; }
+    IColor? DefaultBackgroundColor { get; }
+    IColor? AlternativeItemForegroundColor { get; }
+    IColor? SelectedItemForegroundColor { get; }
+    IColor? MarkedItemForegroundColor { get; }
+    IColor? MarkedAlternativeItemForegroundColor { get; }
+    IColor? MarkedSelectedItemForegroundColor { get; }
+}