Since RGB.NET no longer supports reading colors from devices, syncing is no longer possible and this example no longer needed.
If you're looking for a software to control RGB-devices of different brands together consider checking out Artemis.
Tool to syncronize RGB devices
If you've issues with the configuration window not opening when clicking the Tray-Icon you can disable Tray-Minimization by changing "MinimizeToTray":true to "MinimizeToTray":false in Settings.json in the installation directory. (If this entry isn't already included delete the file and start/close the program once.)