astra_theme_background_updater_4_2_0()

function astra_theme_background_updater_4_2_0() {
	$theme_options = get_option( 'astra-settings', array() );
	if ( ! isset( $theme_options['v4-2-0-update-migration'] ) ) {

		$post_types          = Astra_Posts_Structure_Loader::get_supported_post_types();
		$theme_options       = get_option( 'astra-settings' );
		$blog_types          = array( 'single', 'archive' );
		$third_party_layouts = array( 'woocommerce', 'edd', 'lifterlms', 'lifterlms-course-lesson', 'learndash' );

		// Global.
		if ( isset( $theme_options['site-content-layout'] ) ) {
			$theme_options = astra_apply_layout_migration( 'site-content-layout', 'ast-site-content-layout', 'site-content-style', 'site-sidebar-style', $theme_options );
		}

		// Single, archive.
		foreach ( $blog_types as $index => $blog_type ) {
			foreach ( $post_types as $index => $post_type ) {
				$old_layout    = $blog_type . '-' . esc_attr( $post_type ) . '-content-layout';
				$new_layout    = $blog_type . '-' . esc_attr( $post_type ) . '-ast-content-layout';
				$content_style = $blog_type . '-' . esc_attr( $post_type ) . '-content-style';
				$sidebar_style = $blog_type . '-' . esc_attr( $post_type ) . '-sidebar-style';

				if ( isset( $theme_options[ $old_layout ] ) ) {
					$theme_options = astra_apply_layout_migration( $old_layout, $new_layout, $content_style, $sidebar_style, $theme_options );
				}
			}
		}

		// Third party existing layout migrations to new layout options.
		foreach ( $third_party_layouts as $index => $layout ) {
			$old_layout    = $layout . '-content-layout';
			$new_layout    = $layout . '-ast-content-layout';
			$content_style = $layout . '-content-style';
			$sidebar_style = $layout . '-sidebar-style';
			if ( isset( $theme_options[ $old_layout ] ) ) {
				if ( 'lifterlms' === $layout ) {

					// Lifterlms course/lesson sidebar style migration case.
					$theme_options = astra_apply_layout_migration( $old_layout, $new_layout, $content_style, 'lifterlms-course-lesson-sidebar-style', $theme_options );
				}
				$theme_options = astra_apply_layout_migration( $old_layout, $new_layout, $content_style, $sidebar_style, $theme_options );
			}
		}

		if ( ! isset( $theme_options['fullwidth_sidebar_support'] ) ) {
			$theme_options['fullwidth_sidebar_support'] = false;
		}

		$theme_options['v4-2-0-update-migration'] = true;
		update_option( 'astra-settings', $theme_options );
	}
}