Can't setup plugin to check its affect

[glebkema]

PixTypes > Edit compatibility

PixTypes is a plugin for developers. It required editing functions.php to determine which custom post types and meta-boxes should be active.

So I opened the sandbox editor and added a sample code from the documentation. I also tried to add after_switch_theme and after_setup_theme actions to run this code. As a result, the custom post type appeared in the admin panel menu, but the plugin settings page is still empty.

Currently I marked this plugin as unknown.