Currently (Qt 5.12) QTabBar can elide long text in tab header with ...

It would be nice if it can fade-out the long text as Google Chrome do it with its tabs

This stylesheet does similar what I want, but

1. it applied to all tabs
2. I have to truncate long text on my own

We need this to improve Kiwix - offline web browser, which initially was designed to read Wikipedia offline.

The original issue:

https://github.com/kiwix/kiwix-desktop/issues/358

 
We can apply stylesheet to tabs:

tabWidget->setStyleSheet(
"QTabBar::tab {"
" color: qlineargradient(x1: 0, y1: 0, x2: 1, y2: 0,"
" stop: 0.8 #2A2A2A, stop: 1.0 #E1E1E1); }"); 

https://github.com/kiwix/kiwix-desktop/pull/538

So they look like in attached picture.

For long texts this is OK, exactly what needed, but short texts are centered and fade-out also.

It would be better if we can set stylesheet individually for each tab as previously requested by other people:

https://bugreports.qt.io/browse/QTBUG-8930

https://bugreports.qt.io/browse/QTBUG-72063