Haum rau cov roj nplaum, dej-ua nplaum, tus kheej-nplaum thiab lwm daim ntawv sib tsoo ntawm sab nraum qab, daim ntawv nplaum lossis cov ntawv sib dhos, thiab cov luam ntawv monhochrome. Raws li cov yam ntxwv ntawm cov ntawv sib tsoo, kev tshaj lij.