Change Featured Image metabox text

This deregisters the original featured image metabox and replaces it with one that has a more appropriate title. I’ve used this for custom post types where a “featured image” doesn’t make much sense, such as a slider.

Just update Custom Image in line 5. That’s it!

Uses built-in WordPress hooks. Works well with other plugins that modify the output in the postimagediv.

<?php add_action('do_meta_boxes', 'customposttype_image_box');
function customposttype_image_box() {
	remove_meta_box( 'postimagediv', 'customposttype', 'side' );
	add_meta_box('postimagediv', __('Custom Image'), 'post_thumbnail_meta_box', 'customposttype', 'normal', 'high');
} ?>

<?php add_action('do_meta_boxes', 'customposttype_image_box');

function customposttype_image_box() {

remove_meta_box( 'postimagediv', 'customposttype', 'side' );

add_meta_box('postimagediv', __('Custom Image'), 'post_thumbnail_meta_box', 'customposttype', 'normal', 'high');

} ?>

Add to functions.php or plugin.

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Change Featured Image metabox text