Skins
From VFXPedia
You can customize Fusion's GUI using skins (Preferences -> Appearance section). The skins that ship with Fusion are located in Skins folder inside Fusion's program directory. Fuskin files are really just zip files that you can extract to look inside. If you create your own skin, you can just create a subdirectory in the Skins folder instead of zipping and updating a .fuskin file all the time. It is recommended to restart Fusion after changing the skin so every icon and color gets refreshed properly.
HowTo
The inner workings of a Fusion skin are documented on the Skins/HowTo page.
3rd Party Skins
These skins have been made by Fusion users:
- Flat
by Michael Vorberg
Download - Discussion on PigsFly
- Fresh14
by Stefan Ihringer