xA: bump Fyne to 2.6.0

Not much has actually changed.

xA/xA.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Přemysl Eric Janouch <p@janouch.name>
+// Copyright (c) 2024 - 2025, Přemysl Eric Janouch <p@janouch.name>
 // SPDX-License-Identifier: 0BSD
 
 package main
@@ -122,6 +122,10 @@ func (t *customTheme) Color(
 	       variant = theme.VariantDark
 	   }
 	*/
+	/*
+		// Fyne 2.6.0 has a different bug, the Light variant is not applied:
+		variant = theme.VariantLight
+	*/
 
 	// Fuck this low contrast shit, text must be black.
 	if name == theme.ColorNameForeground &&
@@ -402,10 +406,7 @@ func refreshIcon() {
 			break
 		}
 	}
-
-	// Prevent deadlocks (though it might have a race condition).
-	// https://github.com/fyne-io/fyne/issues/5266
-	go func() { wWindow.SetIcon(resource) }()
+	wWindow.SetIcon(resource)
 }
 
 func refreshTopic(topic []bufferLineItem) {
@@ -1094,7 +1095,10 @@ func relayRun() {
 	fyne.CurrentApp().Preferences().SetString(preferenceAddress, backendAddress)
 	backendLock.Lock()
 
-	relayResetState()
+	fyne.DoAndWait(func() {
+		relayResetState()
+	})
+
 	backendContext, backendCancel = context.WithCancel(context.Background())
 	defer backendCancel()
 	var err error
@@ -1102,8 +1106,10 @@ func relayRun() {
 
 	backendLock.Unlock()
 	if err != nil {
-		wConnect.Show()
-		showErrorMessage("Connection failed: " + err.Error())
+		fyne.DoAndWait(func() {
+			wConnect.Show()
+			showErrorMessage("Connection failed: " + err.Error())
+		})
 		return
 	}
 	defer backendConn.Close()
@@ -1123,12 +1129,15 @@ Loop:
 			if !ok {
 				break Loop
 			}
-			relayProcessMessage(&m)
+			fyne.DoAndWait(func() {
+				relayProcessMessage(&m)
+			})
 		}
 	}
-
-	wConnect.Show()
-	showErrorMessage("Disconnected")
+	fyne.DoAndWait(func() {
+		wConnect.Show()
+		showErrorMessage("Disconnected")
+	})
 }
 
 // --- Input line --------------------------------------------------------------