Thank you both for responding. I found my way to Gareth's site and downloaded the version that I found there. That version has the gray icons, which will work for our purpose. I just set the rest of the icons to be a rather close gray color. It's not ideal, but it'll work better than the turquoise color.
Our classes start on Sept 12th, and we are upgrading at the end of this month. So this fix will work and I'm moving on to other problems. Thanks!