Dual-shot adds a second layer of colored, transparent or translucent polycarbonate on top of a base layer to produce secondary color blends and depth effects.

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The report suggests that all apps will share a similar white base each with its own unique color scheme.

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The system is modeled after military base security protocols in which a color code signifies the level of precaution and perceived threat, according to two officials involved in developing it.

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At its base, the 720 is all about color(s) and camera, just not in the way the Lumia 920 was.

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Combined with prominent red brick chimneys and a brick or stone base, the effect is a three-color scheme.

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Ms. Azario offers clients a demi-couture service in which they can choose their own trims (in a block color or embroidery) on a base coat of white.

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First it's the roar of F-16 jets from a nearby NATO base, then a hailstorm, then torrential rains that change the color of the desert so that previous shots won't match new ones.

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However, in this case, the three lenses have color detail around them which makes them look anything but sinister, and the circular base section might look a little large, but in fact it's light in the hand -- and actually helps it sit quite comfortably atop a helmet.

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The covers apparently get their eye-catching look from their "dual-shot color" shells, with several of the cases a mix of either two colors or a white base and gently tinted outer layer.

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