TASK 21: real logo + creator-hub About overlay — the About overlay is now the in-app creator hub: real logo (the creator's 'llama fortnite superman logo' copied to Assets/llama-logo.png, creator-owned art), hub links — llama chile shop on YouTube (MainViewModel.ChannelUrl, now public), Mastodon (https://mastodon.llamachile.tube/@gramps), Buy me a coffee (https://buymeacoffee.com/llamachiley, live), Unlock Premium (greyed 'coming soon'; IsPremiumAvailable flips on once the tabled itch.io PremiumUrl lands); a Licenses & legal sub-panel loads the full shipped THIRD-PARTY-NOTICES.txt in-app (ShowLicenses reads from the executable dir on first open, 'not found' fallback — never the OS viewer) with '← Back to About' (BackToAbout_Click) — the AboutHubTests integration test drives the real window + VM asserting the hub opens, link URLs are real, licensing loads the shipped notices text, and back returns to the hub — 174 tests passing, 0 warnings

ViewModels/MainViewModel.cs

@@ -69,6 +69,7 @@ public class MainViewModel : ViewModelBase
     private bool _isBugOpen;
     private bool _isFeatureOpen;
     private bool _isAboutOpen;
+    private bool _isLicensesOpen;
     private string _overlayTitle = string.Empty;
     private string _defaultStreamTitle = string.Empty;
     private string _defaultStreamDescription = string.Empty;
@@ -128,9 +129,24 @@ public class MainViewModel : ViewModelBase
     private bool _brandFlashActive;
 
     private const string SupportEmail = "gramps@llamachile.shop";
-    private const string ChannelUrl = "https://youtube.com/@llamachileshop";
+    // The creator-hub link targets (About overlay) — public so the hub's
+    // integration test can assert they point at real destinations.
+    public const string ChannelUrl = "https://youtube.com/@llamachileshop";
+    public const string MastodonUrl = "https://mastodon.llamachile.tube/@gramps";
+    // Tabled 2026-08-14: the itch.io account was just created — the product page
+    // (premium unlock) lands here once set up. Coffee/thanks URL is live.
+    public const string PremiumUrl = "";
+    public const string CoffeeUrl = "https://buymeacoffee.com/llamachiley";
     public static string AppVersionLabel => $"Version {typeof(MainViewModel).Assembly.GetName().Version?.ToString(3)}";
 
+    /// <summary>The About hub's Unlock Premium button lights up only once the
+    /// itch.io product URL is set (tabled 2026-08-14 — account in setup).</summary>
+    public bool IsPremiumAvailable => PremiumUrl.Length > 0;
+
+    /// <summary>Full in-app licensing/legal text, loaded on demand from the
+    /// shipped THIRD-PARTY-NOTICES.txt (never opens the OS viewer).</summary>
+    public string LicensesText { get; private set; } = string.Empty;
+
     public ObservableCollection<Scene> Scenes { get; } = new();
     public ObservableCollection<ChatMessage> ChatMessages { get; } = new();
     public ObservableCollection<DisplayInfo> Displays { get; } = new();
@@ -743,6 +759,14 @@ public class MainViewModel : ViewModelBase
         private set => SetPanel(ref _isAboutOpen, value);
     }
 
+    /// <summary>About hub sub-view: the full licensing/legal texts panel
+    /// (in-app scrolling — no Notepad, no browser tab).</summary>
+    public bool IsLicensesOpen
+    {
+        get => _isLicensesOpen;
+        set => SetProperty(ref _isLicensesOpen, value);
+    }
+
     public bool IsAnyOverlayOpen => IsSettingsOpen || IsBugOpen || IsFeatureOpen || IsAboutOpen;
 
     public string OverlayTitle
@@ -949,6 +973,10 @@ public class MainViewModel : ViewModelBase
     public ICommand SubmitBugCommand { get; }
     public ICommand SubmitFeatureCommand { get; }
     public ICommand OpenChannelCommand { get; }
+    public ICommand OpenMastodonCommand { get; }
+    public ICommand OpenCoffeeCommand { get; }
+    public ICommand OpenPremiumCommand { get; }
+    public ICommand OpenLicensesCommand { get; }
     public ICommand SaveLayoutCommand { get; }
     public ICommand SaveLayoutAsCommand { get; }
     public ICommand OpenLayoutCommand { get; }
@@ -1010,6 +1038,10 @@ public class MainViewModel : ViewModelBase
         SubmitBugCommand = new RelayCommand(_ => SubmitBug());
         SubmitFeatureCommand = new RelayCommand(_ => SubmitFeature());
         OpenChannelCommand = new RelayCommand(_ => OpenUrl(ChannelUrl));
+        OpenMastodonCommand = new RelayCommand(_ => OpenUrl(MastodonUrl));
+        OpenCoffeeCommand = new RelayCommand(_ => OpenUrl(CoffeeUrl));
+        OpenPremiumCommand = new RelayCommand(_ => OpenUrl(PremiumUrl), _ => IsPremiumAvailable);
+        OpenLicensesCommand = new RelayCommand(_ => ShowLicenses());
         StartStreamCommand = new RelayCommand(_ => BeginGoLive());
         EndStreamCommand = new RelayCommand(_ => StopStream(), _ => IsLive);
         SaveLayoutCommand = new RelayCommand(_ => SaveLayoutNow());
@@ -1869,6 +1901,31 @@ public class MainViewModel : ViewModelBase
         IsFeatureOpen = panel == nameof(IsFeatureOpen);
         IsAboutOpen = panel == nameof(IsAboutOpen);
         OverlayTitle = title;
+        if (panel != nameof(IsAboutOpen))
+            IsLicensesOpen = false;
+    }
+
+    /// <summary>Shows the in-app licensing panel, loading the full texts from
+    /// the shipped THIRD-PARTY-NOTICES.txt on first open (never the OS viewer).
+    /// Falls back to a "not found" note if the file is missing so the panel
+    /// never hangs on nothing.</summary>
+    private void ShowLicenses()
+    {
+        if (string.IsNullOrEmpty(LicensesText))
+        {
+            try
+            {
+                var path = Path.Combine(AppContext.BaseDirectory, "THIRD-PARTY-NOTICES.txt");
+                LicensesText = File.Exists(path)
+                    ? File.ReadAllText(path)
+                    : "THIRD-PARTY-NOTICES.txt not found next to the executable.";
+            }
+            catch (Exception ex)
+            {
+                LicensesText = $"Could not read THIRD-PARTY-NOTICES.txt: {ex.Message}";
+            }
+        }
+        IsLicensesOpen = true;
     }
 
     private void SubmitBug()