Pro features:
One Click install
No Annoying ads
More updates.

Features:
Light and Dark Options.
Light weighed.
EMUI 8.0 support.

What's themed:
Settings
System UI
Status bar
Dialer
Messages
Files
Backup
Email
Sound Recorder
Theme manager
Launcher and icons
Notification panel and quick settings.
And almost all of the system apps.

Please reboot after applying.