@Johan: the yellow color of the tab becomes a little faded in 2c. Was that intentional or unintentional? Because I really do like it! The inverted gradient background actually has something pleasant about it too, though it emphasizes the light grey outer border a bit too much (make that one darker, or make the pane gradient lighter). > 1. Inactive tabs in the stack should probably be visually independent > from the content To elaborate on Alex' point; I thought that Johan's darker tab (inverted) actually worked real well as inactive tab of a multitab window. Would that be a proper solution or would that create just too many tab shades (active, inactive, inactive-dark)? @Ryan: thanks for showing the crispness with the outer line. One thing I did notice is that the inactive tab seems to have lost the dark line underneath it in your mockup. Is there a certain reason for that? Ryan wrote: > > To join the frenzy of mock-ups > P.S.: A general note to all the mockup makers: great work guys, my compliments for the effort you put in. The coming weeks I won't have the time to do proper mockups myself (running an experiment) but I'll be reading along.