OMIProjectBranding/Template/branding_hook.php

<?php
if (isset($project) && isset($this->projectBrandingHelper)) {
  $branding = $this->projectBrandingHelper->getBranding($project["id"]);
  $this->hook->attach("template:layout:head:after", "OMIProjectBranding:branding_style", ["branding" => $branding]);
}
?>