Once installed the Kraken control software opens and exposes the four windows of the control panel. Here you can keep an eye on the internal coolant temperature and the core temperatures of the CPU below it. On the right you have access to a tachometer for both the fan speed at the top as well as the pump speed below it.
The graph tab allows you to see the fans speed over time with the top graph, and with the bottom graph you get a look at the CPU temperatures.
For setting the fan curve you have three options. First is to use the Extreme profile with a very aggressive fan curve. The second choice is to use the Silent profile I have shown here. The third is to select Custom and set the curve points wherever they fit best for your needs.
Setting up the lighting is simple. First check the box to make it active, select a color with the RGB scales, and verify that color with the block just below them. There are also effects you can add like thermally changing the lights, setting the color fade as it heats up, as in which colors, and you can set up a strobe on the lighting as well.
The last tab allows you to change the temperature scale, start the app minimized, allow it to auto-start with the OS, or enable the statistics. While you can select a language for this software, the last section offered covers the notifications and where they are to beep for a warning.