The title says it all - Ive searched everywhere… maybe just a brain fart, but I’m not seeing it
It comes built into RW 6. I think it also comes with RW 7. Look in manage add-ons.
Yes it’s built-in
“Open a new project” and select Split from the opening screen:
It’s also in the theme drawer to select in a new project
Don’t worry too much about the “manage addons”:
Try the project and theme drawer first 
unfortunately my theme drawer show this for the split theme ???
Can you open the new project as mentioned?:
Default theme is the one you have?
Is that theme pre-RW6? There could be a plist conflict…
I think it is pre-RW6; I have no idea how to fix this. It will open but in some abortion of a theme and not yours:(
When you right click the theme does it have options to “show in Finder” and “delete theme”?
Hey Doug ! That did the trick! I was able to delete it & upon a restart of RW - the correct Split theme from YUZOOL appeared. Thanks so much