PhoenixArt Fusion Theme

This is a dark theme based on the Blackmagic Fusion UI.

The tones aren't too dark, and the contrasts are subtle to avoid possible eye strain. Some areas may still need more work, like the video editing workspace, as I don't use it in my workflow (all in all, it should work fine).

Please, let me know if there's any issue and I'll do my best to address your feedback.

Thanks, Piero