private static ImageIcon loadDefaultIcon() {
		URL url = getResource(BOMB);
		if (url != null) {
			return new UrlImageIcon(BOMB, url);
		}
		Msg.error(ResourceManager.class, "Could not find default icon: " + BOMB);
		return getImageIcon(new ColorIcon3D(Color.RED, 16, 16));
	}
A convenience method to force the image denoted by <code>filename</code> to be read 
from disk and to not use the cached version 

@param filename name of file to load, e.g., "images/home.gif"
@return the image icon stored in the bytes
@see #loadImage(String)
Ghidra/Framework/Gui/src/main/java/resources/ResourceManager.java