I have Razer keyboard and mouse. Razer now requires you to install Razer Synapse to configure your Razer devices. But the green menu bar icon is really ugly on Macintosh. There is a way to customise the menu bar icon, just follow steps bellow:
Open Razer directory:
cd /Library/Application\ Support/Razer/RzUpdater.app/Contents/Resources/ open .
Change icon file
Status.png to your own icon. Here is a good one, Status.png.