It seems that using the system block style, I can not get the title of my content panes to disappear.
On the pane settings form I have checked the box to "override title" and typed < none > in the box, but the title still shows.
I then went to block settings (ew!) and also configured the blocks to have their titles hidden, just incase the block style pulled the setting from block settings instead of pane settings, but the titles still show on the panes.
Is it possible to hide pane titles when using the default "system block" style? I think I remember this working in the past, perhaps a new bug.
(It looks like the "Override title" setting *does* work if all you want to do is change the title - it's just the "none" that doesn't seem to work.)
edit: it looks like the "none" does still work when using "No style".