Fix MacOS

Add an icon for the installer.

Remove the systray as it hangs.

Remove useless library calls for dark mode borders.

app/build.gradle

@@ -143,6 +143,7 @@ jpackage {
     }
     mac {
         appVersion = "6.6.6" // MacOS sucks, it wants no more than 3 numbers and the first one != 0
+        icon = "${parent.rootDir}/icon.icns"
     }
 }
 

ui/src/main/java/io/xeres/ui/support/tray/TrayService.java

@@ -64,9 +64,11 @@ public void addSystemTray()
 			return;
 		}
 
-		if (!SystemTray.isSupported() || SystemUtils.IS_OS_LINUX)
+		// Only works properly on Windows. On Linux it makes an ugly mess with weird UI and flickering and on
+		// MacOS it hangs on exit.
+		if (!SystemTray.isSupported() || SystemUtils.IS_OS_LINUX || SystemUtils.IS_OS_MAC)
 		{
-			log.error("System tray not supported");
+			log.error("System tray not supported on that platform");
 			return;
 		}
 

ui/src/main/java/io/xeres/ui/support/window/UiBorders.java

@@ -64,7 +64,7 @@ private WindowHandle(WinDef.HWND hwnd)
 
 	private interface DwmSupport extends Library
 	{
-		DwmSupport INSTANCE = Native.load("dwmapi", DwmSupport.class);
+		DwmSupport INSTANCE = Platform.getOSType() == Platform.WINDOWS ? Native.load("dwmapi", DwmSupport.class) : null;
 
 		WinNT.HRESULT DwmSetWindowAttribute(
 				WinDef.HWND hwnd,
@@ -74,7 +74,7 @@ WinNT.HRESULT DwmSetWindowAttribute(
 		);
 	}
 
-	public static void dwmSetBooleanValue(WindowHandle handle, DwmAttribute attribute, boolean value)
+	private static void dwmSetBooleanValue(WindowHandle handle, DwmAttribute attribute, boolean value)
 	{
 		if (handle != null)
 		{
@@ -112,6 +112,11 @@ private static Optional<WindowHandle> findOpeningWindowHandle()
 
 	private static List<WindowHandle> findAllWindowHandle()
 	{
+		if (Platform.getOSType() != Platform.WINDOWS)
+		{
+			return List.of();
+		}
+
 		return com.sun.glass.ui.Window.getWindows().stream()
 				.map(window -> new WindowHandle(new WinDef.HWND(new Pointer(window.getNativeWindow()))))
 				.toList();