[Observium] Custom Icon $config['icon’][‘logo']

Good morning/afternoon/evening,

Just a quick question.

I have created a custom drop-down menu in the navbar, and would like to define a custom icon like; $config['icon’]['company-logo'] which provides a .png file in the images folder etc.

Or more specifically instead of; $navbar['4D-DC'] = array('url' => '#', 'icon' => $config['icon']['company-logo'], 'title' => 'URLS');

Maybe this would work (sadly it doesn’t); $navbar['4D-DC'] = array('url' => '#', 'icon' => ‘images/company-logo.png’, 'title' => ''URLS'');

I cannot find anywhere in the code where the $config['icon’] array is defined, and it is not in the database’s config table either?

Thanks, Andy.