private void loadIconFromLocation(String iconLocation) {
		// is it absolute, or in resources by the given path?
		baseIcon = ResourceManager.loadImage(iconLocation);

		if (baseIcon instanceof UnresolvedIcon) {
			// ...must not be, look for it in our 'special' locations
			baseIcon = loadFromKnownImageResources(iconLocation);
		}
	}
Constructor

@param location filename for the icon (relative or absolute)
Ghidra/Framework/Docking/src/main/java/docking/util/image/ToolIconURL.java