Exciting Crossfade Effect

AirCity have got very creative in a very simple way. They used Rollover's crossfade effect, to good effect.

The Start State is a graphic of the font. It's a transparent PNG with the Rollover Opacity set to 0%. The Transition Effect is Crossfade, and on the End State, they've added a glow and a light splatter effect to their image, this creates an an exciting crossfade effect that has impact