This is Dark Side Theme for SONAR X1 Expanded PC4kGate.
- Locate PC4kGate Resources folder. Default place is: C:\Program Files\Cakewalk\Shared Utilities\Internal\PC4kGate\Resources
- Copy all files of Resources folder to a new sub folder called "Original" (so that you can restore back to the factory settings later)
- Extract this archive to Resources folder. -Done!