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Users can completely customise their computer desktop, changing, for example, its colour and look.
ECONOMIST: Open sesame
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In addition, star colour is simulated for noticeably red, blue and yellow stars, along with the changing brightness of three variable stars Algol, Mira and Delta Cephei.
ECONOMIST: The joys of indoor star-gazing
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Bacteriorhodopsin has the habit of changing from blue to pale yellow in an electric field, which might be useful in colour displays.
ECONOMIST: Showing off