Despite its a cappella rendition of “The Yellow Rose of Texas” and repeated employment of the clever, catchy Unknown Hinson song “I Cleaned Out a Room (in My Trailer for You)” during scene changes, no one could mistake the Richmond Hill Barn Theatre's season-ending presentation for a musical. But in director John VanDeWoestyne's Doublewide, Texas, the character attire designed and gathered by costumer Suzanne DeReu is so eye-catching, and so abundant, that it's almost as though this lightweight Southern comedy were instead a lavish Broadway spectacle boasting a cast of 90 and special appearance by the Rockettes. And the Rockettes wouldn't have been funny.