Merge pull request #2513 from hiqiuyi/v5-dev

指定压缩后图片的背景色

hutool-core/src/test/java/cn/hutool/core/img/ImgTest.java

@@ -26,6 +26,15 @@ public class ImgTest {
 		Img.from(FileUtil.file("f:/test/4347273249269e3fb272341acc42d4e.jpg")).setQuality(0.8).write(FileUtil.file("f:/test/test_dest.jpg"));
 	}
 
+	@Test
+	@Ignore
+	public void compressWithBackgroundColorTest() {
+		Img.from(FileUtil.file("D:/test/before_compress.png"))
+				.setBackgroundColor(Color.WHITE)
+				.setQuality(0.8)
+				.write(FileUtil.file("D:/test/after_compress.jpg"));
+	}
+
 	@Test
 	@Ignore
 	public void writeTest() {