fade chevrons. seamless pattern. gradient halftone background with chevron pattern for prints. gradation transition shevron

abstract backdrop background backgrounds black border chevron chevrons classic contrast design designs effect fabric fade geometric gradation gradient graphic halftone herringbone line lineal linear lines lining monochrome overlay paper patern paterns pattern patterns print prints repeat seamless shape shevron stripe striped stripes textile texture tile vector wallpaper white zag zig zigzag