Spectrum of different colors on a black backgroundSpectrum of different colors on a black background
Information flow in the system on a black backgroundInformation flow in the system on a black background
Fashionable luminous kalonki on a black backgroundFashionable luminous kalonki on a black background
Paper recycling recycling icon on black background arrowsPaper recycling recycling icon on black background arrows
Four squares of different colors on a black backgroundFour squares of different colors on a black background