Block displaying in 'content' region of admin theme?

Question

The below implementation of hook_block_info renders a block in the 'content' region of my theme. Unfortunately, it also appears in the content region of the administrative theme. The documentation states:

properties: (optional) Array of additional metadata to add to the block. Common properties include: administrative:

Boolean that categorizes this block as usable in an administrative context. This might include blocks that help an administrator approve/deny comments, or view recently created user accounts.

/**
 * Implements hook_block_info().
 */
function mymodule_block_info() {
  $blocks['diary'] = array(
    'info' => t('Diary'),
    'properties' => array('administrative' => FALSE),
    'weight' => 1,
    'status' => TRUE,
    'region' => 'content',
  );
  return $blocks;
}

However, my block is still appearing in the 'content' region of the administrative theme?

Answer 1

According to this comment, you can also specify the theme. I haven't tried it -- let us know if it works!

There's also a theme key-value pair:

'exposed_order' => array(
'info' => t('Exposed commerce order filter'),
'theme' => $admin_theme,
'region' => 'content',
'pages' => ORDER_MENU_LINK,
'status' => 1,
'visibility' => 1,
),