The Rialto Square Theatre in Joliet on Tuesday announced a $32,000 contribution from the Dunham Fund of Aurora. The donation represents Rialto’s largest grant in several years. The funds will be used for safety improvements at the 93-year-old landmark, including new exterior doors, a security system, and other safety additions. The funds will be used to replace nearly all of the exterior doors to the theatre. Existing doors will be installed with push-bars to further Rialto’s commitment to patron safety. A new security system will be installed which will provide an upgrade in overall security and safety for the theatre.