Add support for tags and custom taxonomies

I think you can replace:

$CategoryImage->taxonomies =  get_taxonomies();

with your own taxonomies:

$CategoryImage->taxonomies =  array( 'category', 'city', 'cars' );

in WPCustomCategoryImage.php.

ps: But you should try to use some filter to add it, instead of hacking the plugin files ??

or maybe the plugin author could add a custom filter for this, or better yet: add it as an option.

I think the problem is that

WPCustomCategoryImage::initialize();

is called to early so only the built in taxonomies show up in get_taxonomies().

But if one hooks it later, for example

add_action('init', function(){
	WPCustomCategoryImage::initialize();
});

then it works as expected.

Thanks birgire!