I adjusted the width of the vertical tab in Settings, but it doesn't seem to work. In addition, can the tab style provide multiple choices? The default is that the tab is rectangular, can it be trapezoidal, just like this
You can have square or round. Not trapezoidal.
Which Preferences option did you change to what?
Which dimension of which kind of tabs do you want to make larger?
("Vertical" tabs to mean means ones down the left/right side, but I'm not sure if that's what you meant when your screenshot shows what I'd call a "horizontal" tab, but that's also from another program so I don't know if it was meant to represent what you're seeing in Opus or just the style of how it's drawn.)
A nice-to-have feature would be to be able to change the tab height (in pixels?).
Changing the tab font will do that. (Makes the label bigger as well, of course.)
Thanks @Leo, good to know. Would be cool to configure the height independently of the font size. As I said, only nice-to-have. 