In her own fashionable way, Sacai’s Chitose Abe sought to bring love and joy to the world — a “horrowshow” — for spring. She colorized military items — boiler suit, MA1 jacket — in bright pink, stitched pineapple motifs into mohair sweaters, modernized Mexican ponchos, joined Afghan detailing and British paisley, and applied clusters of slogan-less velvet pins to jackets.