Silver and white abstract designed Happy Birthday Cards

blue abstract wonderful design on a white card with gold happy birthday written.

blue star with silver abstract line design on a white happy birthday card.

Black and white confusion

white lines down and up vertical.

what's the problem with the two circles.

very disturbing swirl lines.

black dots or white dots don't know.

black and white straight lines or bent.

Spreading Colours

Colour draws from the spectrum of light (distribution of lightweight power  versus wavelength) combining in the eye with the spectral sensitivities of the lightweight  receptors. Color classes and personal specifications of color are furthermore affiliated  with objects, components, lightweight sources, etc., founded on their personal properties such as lightweight absorption, reflection, or emission spectra. By characterising a hue space, hues can be recognised numerically by their coordinates.