Edited the OTX app info.plist to apply the change
Add these in the file menus, and changed some save dialog boxes (removed branding)
And then there is a section of the home.livecodescript part that inserts file types into Windows registry, which I have't tested that yet.
The mac side seems to be working OK, might be a good idea to rebuild launch services. I went with the old STAK (HC) mac 4char fileType Code, since nothing on modern macOS should be using that.
And for 4char creatorCode I used OXTk (maybe I should've used HC's WILD?)
For filename extensions I used:
- .stk (as an equivalent to .rev)
- .otxstack (as equivalent to .livecode)
- .otxscript (as equivalent to .livecodescript)