A public mural by artist Jun Kaneko will be unveiled at the Principal Riverwalk on Oct. 28. The translucent glass mural, titled "Expansion," will be unveiled at the Court Avenue Pump Station at the corner of Court Avenue and Water Street. The mural is organized into seven narrow panels, each consisting of horizontal bands of changing colors; it will be illuminated by LED lights at night. The event will take place at 5:30 p.m. It is hosted by the Greater Des Moines Public Art Foundation, Downtown Neighborhood Association of Des Moines and Historic East Village Inc.