parent-theme

You miss index.php as it is required – https://developer.wordpress.org/themes/getting-started/what-is-a-theme/#required-files In style.css you have setup your theme as a child, that is second option for this message. Parent theme is two file style.css and index.php. This parent theme style need to be without line about template – remove 7 line from this example if you have … Read more

If the file is included via get_template_part or a part of the template hierarchy, then yes, create a file with the same name in a child theme and WordPress will preferentially load that file. If the file is included via include/require, then no, those are PHP language features, not WordPress functions, there is no way … Read more

You should write the name of the theme as in the folder /wp-content/themes For example, for hiding the default theme Twenty Fifteen you should write like this function kill_themes($themes) { unset($themes[‘twentyfifteen’]); return $themes; } add_filter(‘wp_prepare_themes_for_js’,’kill_themes’);

Of course right after I post this, I find an answer…so hopefully someone else can benefit from this. For me, the answer was instead of unregistering nav menu items, I needed to just remove the action…so my function now looks like this: function remove_cornerstone_menus() { remove_action(‘init’, ‘cornerstone_menus’); } add_action(‘init’, ‘remove_cornerstone_menus’); Worked like a charm.