I accidentally pushed a button on the right side of my screen that turned everything white with black outlines. I can't figure out what i pushed and crtl+z didn't undo it. (below is what my screen looks like) topics. How to , tools. This is called zebra line, it means that are is over exposed. I get this but when i adjust the frame rate to a point where all the stripes disappear the video is underexposed and too dark for viewing. See black and white line art stock video clips. (c) 2019 jayne denham. Under exclusive license to checked label services. composers: Login on lovepik and get free downloads everyday. more than 2,200,000 images help your work easier.