When using a user role editor how to find out any plugins' or themes' role?

Question

Suppose I'm using a Theme which has a custom panel in the admin area, or I'm using a Plugin, has similar Admin menu button. But all such button are only visible to Administrator. When I'm loggin in from an editor account they are gone.

But I need them badly. I want an Editor can have access to those panels, and I want to let them the privilege.

In that case I'll need to know the theme's or plugin's specific ROLE's or CAPABILITIES' name and then I'll need to assign 'em to a certain user. But here comes the million dollar question:

• HOW COME I FIND OUT A THEME'S OR PLUGIN'S SPECIFIC CAPABILITIES?

  //suppose you have a custom role called 'architect' and you want to add a capability called `can access architect zone`
  global $wp_roles;
  $wp_roles->add_cap( 'architect', 'can_access_architect_zone' );
  

code cited from:this link

How can I assume that the plugin or theme uses the 'can_access_architect_zone' as its capability?

Answer 1

functions like add_submenu_page() ask for a capability when they are called, as in de code below:

add_submenu_page( $parent_slug, $page_title, $menu_title, $capability, $menu_slug, $function );

$capability contains the capability required for this menu to be displayed to the user.

When you want to know wich Roles and Capabilities are used in a theme or plugin, you could take a look in de code and search for these kind of functions.

Also, if you downloaded a theme or plugin, you could give it a try to search for this information on the developers website.