abstract Australian backdrop background coloring colors colouring colours cool curling curls dark decorative density ferns ferntree flora foliage fronds green greenery horticultural horticulture leaves light light-green lighting nature patterns plants radiating rainforest screen shade shadows shapes spread spreading sunlight sunshine texture textures undergrowth variation vegetation wallpaper barbed barbs blades bright Cacti cactus color colored colour coloured distinctive fleshy garden garden-plant hardy lines pink plant pot potplant resilient sharp spiked spikes surface surfaces teeth variety angles architectural Designs details distinct edged edges exterior external fancy interconnected interlinked linear lined mosaic perspectives rectangular rough shaped slabs smooth stone stonework strength style textured thick thin uneven varied various wall feature tiled tiles fitted appearance backgrounds display droplets drops fan-shaped fanning fern garden-display garden-plants growth leaf rain rain-drops shape tropical tropical-plants alternative anthocyanin brassica-oleracea cauliflower contrast contrasting cruciferous cultivar edible fine flavor flavour florets food grafitti-cauliflower inflorescence inflorescence-meristems mashed potato alternative mild nutritious purple purple-cape purple-cauliflower sicilian-violet variant vegetable vegetables violet-queen amplifier analogue audio bass computer digital electricity electronic equaliser equipment graph graphic hardware hi-fi illustration level meter noise oscillate oscillating oscilloscope output pattern power radio Recording red software sound stereo studio technology television transceiver treble Tuner unit vector visual voltmeter volume wave yellow symmetrical symmetry