Created attachment 153003 [details]
profiler button half way shadowed
This is a minor issue.
Button "Profile" is only half way shadowed when profiling session is running.
This is as designed, you can click the right part of the Profile button (the dropdown arrow) to open a menu and change profiling settings while profiling.
Me too, watching the button initially thought that it was a bug. After a while I realized that it was the desired behavior but IMHO this behavior causes a small usability issue.
At first glance it is not very clear that the button is only "half-disabled" and it is not immediate to understand that to activate the button you should click exactly on the not-grayed part of it (and choose a profiler).
I suggest to replace the current "button + dropdownmenu" with a normal button and to show the available profile buttons (the ones that currently are into the dropdown menu) directly into the toolbar.