Force WPML to use Dash Icons instead of the default outdated png icons

wpml_dashicons.php

<?php

/*
The filter that is in WPML core to allow for the modification of the admin icons occurs in wpml-post-status-display.class
in get_status_html. Howevr this filter (wpml_icon_to_translation) only provides the actual icon file, not the full path,
making it's replacement with icons stored elsewhere impossible.

So for this code to work, you have to mod render_status_icon() as follows:

	private function render_status_icon( $link, $text, $img ) {
		$path = ICL_PLUGIN_URL . '/res/img/';
		$w = '16';
		$h = '16';
		$icon_html = '<img style="padding:1px;margin:2px;" border="0" src="'
		           . $path
		           . $img . '" alt="'
		           . $text . '" width="' . $w . '" height="' . $h . '"/>';
		$icon_html = apply_filters( 'wpml_icon_to_translation_html', $icon_html, $path, $img, $text, $w, $h );

		$icon_html = '<a href="' . $link . '" title="' . $text . '">'
					. $icon_html
					.  '</a>';

		return $icon_html;

Once this is done, the code below will work.
*/


add_filter('wpml_icon_to_translation_html', 'cnmd_modernize_wpml_icons', 10, 6);
function cnmd_modernize_wpml_icons($icon_html, $path, $img, $text, $w, $h) {
	$class = "wpml_icon_" . basename( $img, '.png');
	$i = "<div class='$class'><div class='wpml_icon_hidden'>$icon_html</div></div>";
	return $i;
}

add_action('admin_head', 'cnmd_cpt_set_wpml_icons',1);
function cnmd_cpt_set_wpml_icons( ) {
	?>
	<style type="text/css">
		.wpml_icon_edit_translation:before {
			content: '\f119';
			margin-left: -1px;
			font-family: dashicons;
			font-size: 3em;
		}
		.wpml_icon_hidden {
			display: none;
		}
		.wpml_icon_needs-update:before {
			content: '\f531';
			margin-left: -1px;
			font-family: dashicons;
			font-size: 3em;
		}
		.wpml_icon_add_translation:before {
			content: '\f132';
			margin-left: -1px;
			font-family: dashicons;
			font-size: 3em;
		}
	</style>

	<?php
}

And yes, before you say anything, I know this is hacky, but this took me about 15 minutes of effort to prove a point that making these changes is not difficult.