The out-of-focus, festive lights on a Christmas tree create a visual blur of dark and light. Original public domain image… https://www.rawpixel.com/image/3302566/free-photo-image-android-background-bokeh-brightFree Image from public domain licenseRadio City Music Hall sign. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303938/free-photo-image-new-york-neon-city-musicFree Image from public domain license An example at the Christmas in the Park annual light display, sponsored by the local Sertoma Club… https://www.rawpixel.com/image/8042383/photo-image-plant-christmas-treeFree Image from public domain license