CMB2 Image_select field type. Ready to integrated with a theme
image_select
as a field type.
array(
'name' => __('Image Select', 'cmb2'),
'desc' => __('page layout using image_select', 'cmb2'),
'id' => $prefix . 'page_custom_layout',
'type' => 'image_select',
'options' => array(
'disabled' => array('title' => 'Full Width', 'alt' => 'Full Width', 'img' => $image_path . 'img/sidebar-disabled.gif'),
'sidebar-left' => array('title' => 'Sidebar Left', 'alt' => 'Sidebar Left', 'img' => $image_path . 'img/sidebar-left.gif'),
'sidebar-right' => array('title' => 'Sidebar Right', 'alt' => 'Sidebar Right', 'img' => $image_path . 'img/sidebar-right.gif'),
'sidebar-leftright' => array('title' => 'Both Sidebars', 'alt' => 'Both Sidebars', 'img' => $image_path . 'img/sidebar-both.gif'),
),
'default' => 'default',
)
http://www.proy.info/how-to-create-cmb2-image-select-field-type/