Repaint both heads in the v5 palette and embed its three fonts

src/DodoSSH.Client.App/Program.cs

@@ -93,17 +93,25 @@ internal static class Program
 
     /// <summary>Used by the designer as well as by <see cref="Main"/>.</summary>
     /// <remarks>
-    /// <c>WithInterFont</c> registers Inter; it does not make it the default, and until this line the
-    /// application shipped a font it then declined to use — falling back to Segoe UI on Windows and to
-    /// whatever fontconfig offered on Linux. Almost nothing visible moves, because App.axaml sets
-    /// <c>MonoFont</c> on essentially every control that draws text, but the fallback behind those is now
-    /// a font that travels with the build rather than one the machine is assumed to have. The layout
-    /// suite pins the same family, and has to: see HeadlessApp.
+    /// <c>WithInterFont</c> still registers Inter, and it is still what the layout suite pins: see
+    /// HeadlessApp. What changed is which face answers when nothing more specific is asked for. The v5
+    /// design specifies Montserrat, and unlike the substitution this comment used to explain, Montserrat
+    /// now ships embedded in the shell project rather than being requested by a name the machine may not
+    /// have — see DodoSSH.Client.Shell/Assets/Fonts and its csproj entry. Inter stays registered and is
+    /// named as a fallback, so a glyph Montserrat does not cover still resolves to a font that travels
+    /// with the build rather than to whatever the platform's default sans happens to be.
     /// </remarks>
     public static AppBuilder BuildAvaloniaApp() =>
         AppBuilder.Configure<DodoSshApp>()
             .UsePlatformDetect()
             .WithInterFont()
-            .With(new FontManagerOptions { DefaultFamilyName = "avares://Avalonia.Fonts.Inter/Assets#Inter" })
+            .With(new FontManagerOptions
+            {
+                DefaultFamilyName = "avares://DodoSSH.Client.Shell/Assets/Fonts#Montserrat",
+                FontFallbacks =
+                [
+                    new FontFallback { FontFamily = new FontFamily("avares://Avalonia.Fonts.Inter/Assets#Inter") },
+                ],
+            })
             .LogToTrace();
 }