@Override
	public void initializeDefaultPreferences() {
		IPreferenceStore store = Activator.getDefault().getPreferenceStore();
		store.setDefault(GhidraProjectCreatorPreferences.GHIDRA_INSTALL_PATHS, "");
		store.setDefault(GhidraProjectCreatorPreferences.GHIDRA_DEFAULT_INSTALL_PATH, "");
		store.setDefault(GhidraProjectCreatorPreferences.GHIDRA_LAST_PROJECT_ROOT_PATH,
			ResourcesPlugin.getWorkspace().getRoot().getLocation().toOSString());
		store.setDefault(GhidraProjectCreatorPreferences.GHIDRA_LAST_GRADLE_DISTRIBUTION, "");

		// If Ghidra launched Eclipse, automatically add in that Ghidra's location (if it doesn't 
		// already exist) as a convenience to the user.
		File ghidraInstallDir = Activator.getDefault().getGhidraInstallDir();
		if (ghidraInstallDir != null) {
			Set<File> dirs = new HashSet<>(GhidraProjectCreatorPreferences.getGhidraInstallDirs());
			if (!dirs.contains(ghidraInstallDir)) {
				if (dirs.isEmpty()) {
					GhidraProjectCreatorPreferences.setDefaultGhidraInstallDir(ghidraInstallDir);
				}
				dirs.add(ghidraInstallDir);
				GhidraProjectCreatorPreferences.setGhidraInstallDirs(dirs);
			}
		}
	}
Class used to initialize default preference values.
GhidraBuild/EclipsePlugins/GhidraDev/GhidraDevPlugin/src/main/java/ghidradev/ghidraprojectcreator/preferences/GhidraProjectCreatorPreferenceInitializer.java