I've performed a non-standard customization to mask out the article content header icon - my bad. I peformed this by modifying
the /rt_solarsentinel/html/com_content/article/default.php styles (class rt-article -> component-header). This was done under template V1.1
I've just upgraded the template to V1.3 in order to prepare for the Joomla 3.6 upgrade. It looks like things have changed significantly.
Any recommendations on where to find the code again to accomplish this.
Also, what's the best practice to place this in a customization css file.