private void doShowImage(File helpTopic, String oldImageName) {
		if (SAVE_CREATED_IMAGE_FILE) {
			Msg.error(this, "Do not call showImage() directly");
			return;
		}

		assertNotNull("No new image found", image);

		Image oldImage = getOldImage(helpTopic, oldImageName);
		File imageDir = new File(helpTopic, "images");
		imageDir.mkdirs();
		File imageFile = new File(imageDir, oldImageName + DEFAULT_FILENAME_SUFFIX);
		ImageDialogProvider dialog = new ImageDialogProvider(imageFile, oldImage, image);
		dialog.setTitle("help/topics/" + helpTopic.getName() + "/images/" + oldImageName);
		showDialog(dialog);
	}
Call when you are finished generating a new image.  This method will either show the
newly created image or write it to disk, depending upon the value of
{@link #SAVE_CREATED_IMAGE_FILE}, which is a system property.

@param helpTopic The help topic that contains the image
@param oldImageName  The name of the image
Ghidra/Features/Base/src/main/java/help/screenshot/GhidraScreenShotGenerator.java