UB Trex Pro Color Change Not Impacting Select Item

I’ve gone through all of the theme configuration and updated colors to match our brand scheme (both Colors & Elements sections of the configuration), and of course gone through the static file deployment and cache cleaning.  Pretty much everything is fine, but there are a few elements that are still reflecting the theme default colors:
UB Content Slider -- Action buttons
Client Sale Section -- Client Comment background & Action button
From the Journal Section -- Header text background
Any way to get these colors updated without hacking the CSS?