public static @NotNull String getBackgroundSpec(@Nullable Project project, @NotNull String propertyName) {
    String spec = project == null || project.isDisposed() ? null : PropertiesComponent.getInstance(project).getValue(propertyName);
    if (spec == null) {
      spec = PropertiesComponent.getInstance().getValue(propertyName);
    }
    return spec == null ? System.getProperty(propertyName, "") : spec;
  }
public static @NotNull String getBackgroundSpec(@Nullable Project project, @NotNull String propertyName)