After vandalism destroyed a memorial dedication pane in the 1970s, plexiglas sheets were installed on the exterior side of the Tiffany windows for protection. Over time, the plastic discolored to a bluish tinge and transmitted less light, as an accumulated film of dirt also clouded the stained glass. In the 21st century, the plastic sheets have been replaced, and the glass has been cleaned to restore its original beauty. In 2015, $120,000 in funds was raised to begin restoration of the Tiffany windows. , night-time lighting is being installed, so that the Tiffany windows can be viewed from outside the building.