Several apps have a very narrow scrollbar which I have trouble grabbing. This is the same in several themes I tried; I am currently using Breeze-Dark.
By modifying gtk style sheets, I got wider scrollbars in xfce4-terminal, thunar and geany.
https://forum.xfce.org/viewtopic.php?id=9152
https://forum.manjaro.org/t/enlarge-scroll-bar-width-how-to/47579
But this has no effect on featherpad, my preferred text editor. The featherpad developer explains "The scrollbar width is determined by the active widget style, not by FeatherPad. No app should enforce such sizes; it's the job of Qt widget styles/themes to set them."
I got a clue from an error message when Featherpad is started from terminal:
$ featherpad
QApplication: invalid style override 'gtk' passed, ignoring it.
Available styles: bb10dark, bb10bright, cleanlooks, gtk2, cde, motif, plastique, Windows, Fusion
$ echo $QT_STYLE_OVERRIDE
gtk
$ export QT_STYLE_OVERRIDE=gtk2 ; featherpad Scripts/JPgt
The last command opens Featherpad with a nice, wide scrollbar 
so I added "export QT_STYLE_OVERRIDE=gtk2" to /etc/profile
At my low level of knowledge, this took some digging to resolve, so I hope this description will be useful to someone.
Topic: Narrow scrollbars (Read 756 times)
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