the official package is signed - so osx intentionally prevents from running that if someone has patched that 
btw: my build doesn’t use different libraries - it’s build following the same description as the official builds.
@MStraeten I tried your build - but it did not solve my colour problems. However, from your comment above, it sounds like it doesn’t include the patched libraries after all?
no it’s current master code base (sometimes with upcoming but not yet merged pull requests but no third party stuff)