I created a project in LMMS 1.2.0, and coloured the B/B TCO, saved it, and opened it in 1.3 alpha. I cannot see the colours. If I close then reopen 1.2.0 then check the project colours are still visible.
Normally I'd post straight to the issue tracker, but this is such an absurd bug I cannot believe it can't have been noticed. Can someone else try this and confirm that this is in fact happening?
If it is, I'll submit it myself, since I have an additional feature request that occurs to me with it.