FirstWave monitoring applications support Dark Mode with the following releases:
Dark mode in the applications tracks your operating system settings, some browsers support enabling dark or light mode independently of the operating system.
Access the Firefox Settings:
Scroll down to the Language and Appearance and adjust your settings accordingly.
Settings are changed in System Preferences → General
Select Dark
Select Light
How to Enable Dark Mode in Windows 10
Dark Mode is changed in Settings → Personalization → Colors
Select Dark
Select Light