Remove redundant credential tile image

docs/architecture.md

@@ -67,7 +67,12 @@ Every synchronized user also receives `Universidad La Salle` in the AD
 The generic SGU credential is rendered as a dedicated branded tile instead of
 being grouped below the anonymous **Other user** tile. Machine policy assigns
 the SGU CLSID as the default provider while retaining the built-in Microsoft
-password provider.
+password provider. It enumerates one `CPFT_TILE_IMAGE` and places the
+`CPFT_LARGE_TEXT` heading immediately after it with `CPFS_DISPLAY_IN_BOTH`,
+matching Microsoft's supported field ordering. LogonUI owns field typography:
+on Windows 10 and 11, the account-name title used by **Other user** is shell UI,
+not a style that a generic Credential Provider can request. Do not add a second
+tile image or a synthetic Windows account to imitate that title.
 
 The managed hierarchy is rooted at `OU=Usuarios-SGU`: `Docentes`, `Alumnos`,
 and `Administrativos` are direct child OUs beneath it.

src/SGU.CredentialProvider/ControlKeys.cs

@@ -4,7 +4,6 @@ internal static class ControlKeys
 {
     public const string ProviderLabel = "ProviderLabel";
     public const string ProviderLogo = "ProviderLogo";
-    public const string UserTile = "UserTile";
     public const string Heading = "Heading";
     public const string InformationLabel = "InformationLabel";
     public const string UserName = "UserName";

src/SGU.CredentialProvider/ProviderTileIcon.cs

@@ -7,7 +7,6 @@ namespace SGU.CredentialProvider;
 internal static class ProviderTileIcon
 {
     public const int Size = 72;
-    public const int UserTileSize = 128;
 
     public static Bitmap Create()
     {
@@ -31,29 +30,4 @@ internal static class ProviderTileIcon
 
         return bitmap;
     }
-
-    public static Bitmap CreateUserTile()
-    {
-        Bitmap bitmap = new(UserTileSize, UserTileSize, PixelFormat.Format32bppArgb);
-        using Graphics graphics = Graphics.FromImage(bitmap);
-        graphics.SmoothingMode = SmoothingMode.AntiAlias;
-        graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
-        graphics.Clear(Color.FromArgb(0, 83, 155));
-
-        using Pen border = new(Color.FromArgb(190, 221, 241), 5f);
-        using Pen key = new(Color.White, 9f)
-        {
-            StartCap = LineCap.Round,
-            EndCap = LineCap.Round,
-            LineJoin = LineJoin.Round
-        };
-
-        graphics.DrawEllipse(border, 7, 7, 113, 113);
-        graphics.DrawEllipse(key, 25, 25, 43, 43);
-        graphics.DrawLine(key, 62, 62, 99, 99);
-        graphics.DrawLine(key, 82, 82, 95, 69);
-        graphics.DrawLine(key, 93, 93, 106, 80);
-
-        return bitmap;
-    }
 }

src/SGU.CredentialProvider/SguCredentialProvider.cs

@@ -21,11 +21,10 @@ public sealed class SguCredentialProvider : CredentialProviderBase
             ControlKeys.ProviderLogo,
             "Acceso institucional SGU",
             ProviderTileIcon.Create());
-        yield return new UserTileControl(
-            ControlKeys.UserTile,
-            "Universidad La Salle",
-            ProviderTileIcon.CreateUserTile());
-        yield return new LargeLabelControl(ControlKeys.Heading, "Acceso institucional SGU");
+        yield return new LargeLabelControl(ControlKeys.Heading, "Acceso institucional SGU")
+        {
+            State = FieldState.DisplayInBoth
+        };
         yield return new SmallLabelControl(
             ControlKeys.InformationLabel,
             "Usa tu clave institucional (DO, AL o AD + 6 dígitos) y contraseña.");

tests/SGU.CredentialProvider.SmokeProbe/Program.cs

@@ -16,7 +16,6 @@ internal static class Program
     [
         "Universidad La Salle · Acceso SGU",
         "Acceso institucional SGU",
-        "Universidad La Salle",
         "Acceso institucional SGU",
         "Usa tu clave institucional (DO, AL o AD + 6 dígitos) y contraseña.",
         "Clave institucional",
@@ -92,7 +91,7 @@ internal static class Program
                 credentialCount == 1 &&
                 credential != IntPtr.Zero &&
                 providerLogoPresent &&
-                userTilePresent &&
+                !userTilePresent &&
                 labels.SequenceEqual(ExpectedLabels, StringComparer.Ordinal);
 
             if (mode != "enumeration" && passed)

tests/SGU.CredentialProvider.Tests/ProviderTileIconTests.cs

@@ -33,18 +33,18 @@ public sealed class ProviderTileIconTests
     }
 
     [Fact]
-    public void ProviderPublishesABrandedDedicatedUserTileAndHeading()
+    public void ProviderPublishesASingleBrandedImageAndLargeHeading()
     {
         SguCredentialProvider provider = new();
         ControlBase[] controls = provider.GetControls(UsageScenario.Logon).ToArray();
 
-        UserTileControl userTile = Assert.Single(controls.OfType<UserTileControl>());
+        Assert.Empty(controls.OfType<UserTileControl>());
+        Assert.Single(controls.OfType<CredentialProviderLogoControl>());
         LargeLabelControl heading = Assert.Single(controls.OfType<LargeLabelControl>());
         SguCredentialTile tile = Assert.IsType<SguCredentialTile>(provider.CreateGenericTile());
 
-        Assert.Equal(ProviderTileIcon.UserTileSize, userTile.Bitmap.Width);
-        Assert.Equal(ProviderTileIcon.UserTileSize, userTile.Bitmap.Height);
         Assert.Equal("Acceso institucional SGU", heading.Label);
+        Assert.Equal(FieldState.DisplayInBoth, heading.State);
         Assert.Equal(GenericTileDisplayMode.DisplayAsDedicatedTile, tile.GenericTileDisplayMode);
     }
 }