in hrev51449 BControlLook was changed. The change that added the tabs on the side removed the reliance on BControlLook. So until I get another release done, http://yab.orgfree.com/GetLatest-yab.zip is your friend.
new version recipe in haikuports... https://github.com/haikuports/haikuports/pull/1706 I need to wait until the x86_gcc2h version of haiku is completely fixed before I can update the version in the fatelk repo.