abstract background blended bright chain-like circles circular color colored colorful colors colour coloured colourful colours connected connection contrasting curved curves interconnected interlaced interlinked intertwined interwoven light linear lined lines multicolored multicoloured patterns perspectives rainbow-colors rainbow-colours ripples rippling smooth stripe stripes stripy surface surfaces texture textures undulated undulating vertical wallpaper brilliant cloud clouds contrast cross dark darkening dramatic dusk evening fiery flaming gold glory golden lighting moody setting sun shadows shining silhouette silhouettes skies sky spreading sun sunset alert black coloring colouring communicate communicating communication contrasts decoration emergency facetious fading flippant fuzzy information informative informing message paint painted pink pink-painted-wall risk risks risky safety sarcasm sign symbolic vehicles wall warning warning-sign wording words yellow above appearance art-glass blue ceiling coloration decorative distinctive glass glassy modern panel panelled panels patterned shaped shapes skylight stained-glass style surfacing textured thick thin