public void setHomeButton(Icon icon, Runnable callback) {
		root.setHomeButton(icon, callback);
	}
Sets the icon for this window's 'home button'. This button, when pressed, will show the
tool's main application window.

@param icon the button's icon
@param callback the callback to execute when the button is pressed by the user
Ghidra/Framework/Docking/src/main/java/docking/DockingWindowManager.java