IRVINE – Could the reprieve granted for the bright, intricate mural along I-405 in Irvine herald the “unbeigeing” of Irvine? The mural, by artist Zio Ziegler, on the freeway-facing wall of the Tilly’s building along I-405, got a longer-than-expected extension this week – and has prompted talk of a potential public art program. The Irvine Planning Commission Thursday night unanimously approved a nine-month extension for the mural. Slated to be painted over in mid-October, the