Neither my Voyage, my wife's, nor this new one show anything more than the most subtle gradient... no matter the type or amount of ambient light. (blog.the-ebook-reader.com)
Christopher treats hard materials with delicacy, always attuned to subtle gradients of light and shadow. (royalacademy.org.uk)
Their imagery and atmosphere evoke celestial bodies as seen from a distance, the light sources emanating directional lines or radial patterns which result in subtle gradients. (vandorenwaxter.com)