geometric glass office pentagon stoke-on-trent windows atomic black danger fusion laboratory nucleon pictogram radiation red science security sign yellow buds close colourful dark five flower indigo leaf leaves petal purple rich sided sides UP vibrant abstract background blue burst concept creation design dramatic fill Fractal graphic halloween illustration image New original pattern scrapbooking style swirl texture unique vector brass bronze circles copper fun futuristic gold grooves metallic modern render retro swirls tile tiles shiny maroon pink