Drops fall on the surface of a virtual fluid. The waves propagate in all directions, overlap, reflect from the edges of the screen, gradually fading out. Touching the screen also causes a wave. Images are superimposed on the surface of the liquid using various realistic effects (flag, refraction, reflection) and fantastic effects (ice, foil). You can use your own background images. Additionally, the liquid can be decorated with different spectra. Settings are grouped into presets. Each preset is a combination of effect, background image and spectrum. You can add your own presets or modify system presets.