COLOR, PATTERN, WHIMSY, SCALE: THE BEST OF SHELBURNE MUSEUM One hundred objects from the eclectic permanent collection illustrate the principles guiding museum founder Electra Havemeyer Webb’s inspired collecting. The show inaugurates Shelburne Museum’s new Pizzagalli Center for Art and Education, which, unlike the rest of the museum, will remain open year-round. Through Dec. 31. Shelburne Museum, Shelburne, VT.
FLASHBACK – NOVEMBER 22, 1963 Paintings, prints, photographs, and sculptures responding to the assassination of President Kennedy, including work by Andy Warhol, Marisol, and Ant Farm. Through Jan. 12. Addison Gallery of American Art, Andover. 978 749 4015, www.andover.edu/Museums/Addison Full story for BostonGlobe.com subscribers.