Sure! Here's the first dialog: And the second: Of note, the second dialog only appears if you choose “Allow” in the first. If you instead choose “Always Allow”, the second dialog is skipped. (and the keychain read succeeds)

In my tests, the attributedTitle property does have an effect, but if you set it too early in the tab's lifecycle, it gets reset. Setting it a bit later, it seems to properly stick. However, despite what the docs state*, the title's font size and font color are incorrect, even when left unspecified: the font is slightly too large, and the color is the same for both selected and unselected tabs (and isn't correct for either). * “Attributes that are left unspecified, including the font and foreground color, are automatically filled in using default values appropriate for the window tab”

Thanks a lot! I had the same issue, and probably would have never figured out the solution on my own.