[webkit-gtk] libwebkit2gtk-4.1 update on Debian Bookworm breaks scroll bars

[Michael Catanzaro]

Hi,

System scrollbar theme is no longer supported, sorry.

This feature was already limited to the deprecated GTK 3 API versions, 
since GTK 4 doesn't support foreign drawing of GTK widgetry. So modern 
apps already have no native scrollbars unfortunately; they only work in 
legacy GTK 3 apps.

Then 2.46 switched from Cairo to Skia for rendering, and native 
scrollbars were just never implemented when using Skia. I don't 
understand graphics and don't know the details about why, but I think 
it's got something to do with performance. I think using GTK forces web 
view rendering to use only one thread instead of many threads?

Sorry for the bad news,

Michael