I wanted to do some further styling to my Phoca Download page, that placed a "play indicator" icon before the word play on the button and wanted it to better match my site. I also wanted to change the color of the details button to make it less obtrusive.
Here's what to do (with some help from the Phoca support forum):
Edit this file:
components\com_phocadownload\views\category\tmpl\default_files.php
Change the code for the Play Button (Around Line 88)
$pdButtonPlay .= '<a class="btn btn-primary" href="'.$playLink.'" onclick="'. $buttonPlOptions.'" ><span class="glyphicon glyphicon-play-circle"></span> '. JText::_('COM_PHOCADOWNLOAD_PLAY').'</a>'
Change the code for the Details Button (Around Line 294)
$pdButtonDetails .= '<a class="btn btn-default" '.$overlib.' href="#">'. JText::_('COM_PHOCADOWNLOAD_DETAILS').'</a>';
Final Result: