Hello all n00bs.
Loads of posts around say Mmodplug works great in Wine, but on Catalina flavoured OSX
I can't get it to, is it not possible anymore ?
I found out from them on Twitter, that you can use modplug on Catalina if you get the last compatible with Windows XP version.
... and worked out to use wine-staging to get the toolbar to be the right size !
... and build & install libpng1.5.x from source cos you can't get that ver from homebew ! then the splashscreen and Icons all work.