I have absolutely no idea which component to choose for this bug, as it affects all KDE apps. Frequently Asked Question on the web: How to enlarge the width of scrollbars, esp. with 4K monitors are they are "ridiculously thin" some says, I do agree. Solution under GTK: Create the file ~/.config/gtk-3.0/gtk.css if it doesn’t already exists and paste the following CSS rules in it: scrollbar, scrollbar button, scrollbar slider { min-width: 10px; min-height: 10px; } ADDITIONAL INFORMATION This ought to be independant of any theme Examples of complains: https://forum.kde.org/viewtopic.php?f=17&t=166258 https://www.reddit.com/r/firefox/comments/ntqo01/how_can_i_increase_scrollbar_thickness_kdeubuntu/ etc. Thanks
The scrollbar thickness already scales itself if you use the global scaling system. I'm using a 4K screen with 200% scale and the scrollbar is exactly the same thickness that it would be if it was a 1080p screen at 100% scale. As for the thickness itself, we increased it a bit a few years ago and there are no plans to make it either any thicker or any thinner. Any thicker, and we get complaints that it's "wasting space". Any thinner, and we get complaints that it is hard to use and too much like a mobile phone scrollbar.
Actually I lied. We just made the bar a bit thicker within its track (6px wide -> 10px wide) in https://invent.kde.org/plasma/breeze/-/commit/8532a780f368a33f79af9a2e995e56d9522f7c59. Note that the track itself is not any wider, but this does not matter because the bar's clickable always secretly spanned the full width of the track anyway.
As for the thickness itself, we increased it a bit a few years ago and there are no plans to make it either any thicker or any thinner. Any thicker, and we get complaints that it's "wasting space". Any thinner, and we get complaints that it is hard to use and too much like a mobile phone scrollbar. This is the proof, that it ought to be customisable by the final user. After all, one can change mouse speed, buttons, etc. almost anything to the very exception of the scrollbar. Please bring a solution, as there do exists in GTK. Thanks
Created attachment 140650 [details] Dolphin too thin scrollbar
Created attachment 140651 [details] Thunar scrollbar width ok
Just uploaded, screenshots of Dolphin vs Thunar scrollbar in same session, in this very case in 1920x1080 Dolphin's scrollbar width is definitly too thin to me, as for any kde app. Notice how big is mouse pointer, compare to scrollbar width
You should like the new ones, then. :)
Not fixed for me in Dolphin 21.08 KDE Framework 5.85.0 Qt 5.15.2
It is fixed in Plasma 5.23, not any Dolphin or KDE Frameworks version. The Breeze theme lives in a Plasma-aligned package.
>It is fixed in Plasma 5.23, not any Dolphin or KDE Frameworks version. I'll very when it'll be released. >The Breeze theme lives in a Plasma-aligned package. Then my question is: will it apply whatever theme a user is applying? Because, with the GTK solution, it applies to any theme, see my very first post
(In reply to phil4000n from comment #10) > >It is fixed in Plasma 5.23, not any Dolphin or KDE Frameworks version. > I'll very when it'll be released. > > >The Breeze theme lives in a Plasma-aligned package. > Then my question is: will it apply whatever theme a user is applying? > > Because, with the GTK solution, it applies to any theme, see my very first > post No, the change was made only to the Breeze theme. There is no such thing as a universal theme that applies to all apps, so the change will only apply to apps that are being styled by the Breeze theme. We will do our best to get these changes added to the Breeze GTK theme too.
Why not adding an extra option to configure the width of the scrollbars??? One change icons size, mouse pointer size, etc. but not the scrollbar. Thanks