General options for header, social links and footer sections could also be set in Blog Info panel.
color('theme_color'); ?>

Hex values, e.g. #FF0000

checkbox('theme_social_disable', ''); ?>

Language language(); ?>
  checkbox('theme_posts', 'Add latest posts'); ?>
checkbox('theme_thumbnails', 'Add post thumbnails'); ?>
checkbox('theme_excerpts', 'Add post excerpts'); ?>
categories_group('theme_categories'); ?>
text('theme_tags', 30); ?>

comma separated

text('theme_max_posts', 5); ?>
post_types('theme_post_types'); ?>