Detect the desired size from the path or Query parameters.

bundles/org.eclipse.jface/src/org/eclipse/jface/resource/URLHintProvider.java

@@ -0,0 +1,50 @@
+/*******************************************************************************
+ * Copyright (c) 2025 Christoph Läubrich and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Christoph Läubrich - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jface.resource;
+
+import java.net.URL;
+import java.util.function.Supplier;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.eclipse.swt.graphics.Point;
+
+class URLHintProvider implements Supplier<Point> {
+
+	private static final Pattern QUERY_PATTERN = Pattern.compile("&size=(\\d+)x(\\d+)"); //$NON-NLS-1$
+	private static final Pattern PATH_PATTERN = Pattern.compile("/(\\d+)x(\\d+)/"); //$NON-NLS-1$
+
+	private URL url;
+
+	public URLHintProvider(URL url) {
+		this.url = url;
+	}
+
+	@Override
+	public Point get() {
+		String query = url.getQuery();
+		Matcher matcher;
+		if (query != null && !query.isEmpty()) {
+			matcher = QUERY_PATTERN.matcher("&" + query); //$NON-NLS-1$
+		} else {
+			String path = url.getPath();
+			matcher = PATH_PATTERN.matcher(path);
+		}
+		if (matcher.find()) {
+			return new Point(Integer.parseInt(matcher.group(1)), Integer.parseInt(matcher.group(1)));
+		}
+		return null;
+	}
+
+}

bundles/org.eclipse.jface/src/org/eclipse/jface/resource/URLImageDescriptor.java

@@ -25,6 +25,7 @@
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.function.Function;
+import java.util.function.Supplier;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -42,6 +43,7 @@
 import org.eclipse.swt.graphics.ImageDataProvider;
 import org.eclipse.swt.graphics.ImageFileNameProvider;
 import org.eclipse.swt.graphics.ImageLoader;
+import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.internal.DPIUtil.ElementAtZoom;
 import org.eclipse.swt.internal.NativeImageLoader;
 import org.eclipse.swt.internal.image.FileFormat;
@@ -133,7 +135,7 @@
 	private static ImageData getImageData(URL url, int fileZoom, int targetZoom) {
 		try (InputStream in = getStream(url)) {
 			if (in != null) {
-				return loadImageFromStream(new BufferedInputStream(in), fileZoom, targetZoom);
+				return loadImageFromStream(new BufferedInputStream(in), fileZoom, targetZoom, new URLHintProvider(url));
 			}
 		} catch (SWTException e) {
 			if (e.code != SWT.ERROR_INVALID_IMAGE) {
@@ -147,8 +149,10 @@
 	}
 
 	@SuppressWarnings("restriction")
-	private static ImageData loadImageFromStream(InputStream stream, int fileZoom, int targetZoom) {
-		return NativeImageLoader.load(new ElementAtZoom<>(stream, fileZoom), new ImageLoader(), targetZoom).get(0)
+	private static ImageData loadImageFromStream(InputStream stream, int fileZoom, int targetZoom,
+			Supplier<Point> hintProvider) {
+		return NativeImageLoader
+				.load(new ElementAtZoom<>(stream, fileZoom), new ImageLoader(), targetZoom, hintProvider).get(0)
 				.element();
 	}