OpenRGB - OpenRGB is an all-in-one network-based software development kit that allows you to use third-party software to control all of your RGB.
X-Mouse Button Control - XMouse Button Control (XMBC) allows you to create application and window specific profiles.
Artemis RGB - An overview of the guides that'll teach you how to use Artemis
Project Aurora - Gaming Software
Logitech Options - Customisation of Logitech mouse or keyboard settings, device information, additional functionality...
SignalRGB - Control and sync your favorite RGB devices from any brand.