source: lightning/11.3.2/functions-compatible.php

<?php
add_action( 'after_setup_theme', 'lightning_options_compatible' );
/**
 * This is converter that old options to new options value
 * This function is also used in test-lightning.php
 *
 * @return void
 */
function lightning_options_compatible() {
        $options = get_option( 'lightning_theme_options' );
        global $wp_query;

        $additional_post_types = get_post_types(
                array(
                        'public'   => true,
                        '_builtin' => false,
                ),
                'names'
        );

        $archive_post_types = array( 'post' ) + $additional_post_types;

        if ( isset( $options['top_sidebar_hidden'] ) ) {
                if ( $options['top_sidebar_hidden'] ) {
                        if ( isset( $options['layout']['front-page'] ) && $options['layout']['front-page'] === 'col-two' ) {

                        } else {
                                $options['layout']['front-page'] = 'col-one-no-subsection';
                                update_option( 'lightning_theme_options', $options );
                        }
                }
                unset( $options['top_sidebar_hidden'] );
        }
        if ( isset( $options['layout']['archive'] ) ) {
                foreach ( $archive_post_types as $archive_post_type ) {
                        // Old parameter exist && not default
                        if ( $options['layout']['archive'] && $options['layout']['archive'] !== 'default' ){
                                // New parameter is not exist.
                                if ( empty ( $options['layout'][ 'archive-' . $archive_post_type ] ) ){
                                        $options['layout'][ 'archive-' . $archive_post_type ] = $options['layout']['archive'];
                                }
                        }
                }
                update_option( 'lightning_theme_options', $options );
                unset( $options['layout']['archive'] );
        }
        if ( isset( $options['layout']['single'] ) && $options['layout']['single'] != 'default' ) {
                foreach ( $archive_post_types as $archive_post_type ) {
                        $options['layout'][ 'single-' . $archive_post_type ] = $options['layout']['single'];
                }
                update_option( 'lightning_theme_options', $options );
                unset( $options['layout']['single'] );
        }
        if ( isset( $options['layout']['page'] ) && $options['layout']['page'] != 'default' ) {
                $options['layout']['single-page'] = $options['layout']['page'];
                update_option( 'lightning_theme_options', $options );
                unset( $options['layout']['page'] );
        }
}


/*
  Deal with typo name action
/*-------------------------------------------*/
add_action( 'lightning_entry_body_after', 'lightning_ligthning_entry_body_after' );
function lightning_ligthning_entry_body_after() {
        do_action( 'ligthning_entry_body_after' );
}
add_action( 'lightning_entry_body_before', 'lightning_ligthning_entry_body_before' );
function lightning_ligthning_entry_body_before() {
        do_action( 'ligthning_entry_body_before' );
}

/*
  Deactive Lightning Advanced Unit
/*-------------------------------------------*/
add_action( 'init', 'lightning_deactive_adv_unit' );
function lightning_deactive_adv_unit() {
        $plugin_path = 'lightning-advanced-unit/lightning_advanced_unit.php';
        lightning_deactivate_plugin( $plugin_path );
}
function lightning_deactivate_plugin( $plugin_path ) {
        include_once ABSPATH . 'wp-admin/includes/plugin.php';
        if ( is_plugin_active( $plugin_path ) ) {
                $active_plugins = get_option( 'active_plugins' );
                // delete item
                $active_plugins = array_diff( $active_plugins, array( $plugin_path ) );
                // re index
                $active_plugins = array_values( $active_plugins );
                update_option( 'active_plugins', $active_plugins );
        }
}