Merely a Mirage is a sheer white based solar with blue shimmer that intensifies when the base changes from white to dark gray under UV light. Stronger UV lighting (such as a UV lamp) will produce a darker gray whereas less strong UV light (cloudy day) will produce a lighter gray effect.

*Note* - The photos showing the darkest gray can be achieved using a UV lamp. Results in sunshine will depend on the level of UV present on any given day.