Is there a way to retrieve all the registered customizer sections? I'm building out a custom customizer and don't want other plugin or themes who register custom sections to appear on this page.
I can remove all the default sections, but I can't predict which plugins or themes will register sections.
$wp_customize->remove_section( 'title_tagline' );
removes the default title_tagline section.
I can see all of the registered sections by doing
print_r( $wp_customize );. I would just loop over that section and build an array to un-register, but I can't seem to access the array of registered sections due to it being protected.
Is there any other way to retreive registered sections?