docs: public static IconSet retrieveRegisteredIconSet(String fontPath, boolean editMode) {
          final IconSet iconSet = REGISTERED_ICON_SETS.get(fontPath);
  
          if (iconSet == null && !editMode) {
              throw new RuntimeException(String.format("Font '%s' not properly registered, please" +
                      " see the README at https://github.com/Bearded-Hen/Android-Bootstrap", fontPath));
          }
          return iconSet;
      }