Sit back and relax or play with the parameters. Press "space" to freeze, respectively to continue. Press "c" to clear. Press "p" to change the parameters. Press "s" to save your preferred parameters (and let us know them in the comments). Press "s" again to hide the parameters. Press "l" to load some parameters from the comments. If you prefer the fullscreen mode, press ctrl+m or cmd+m to smooth it out more.