liferea / webkit: GTK coilor theme ignored after minor version upgrade

I am using liferea on Debian 10. After executing regular upgrade of these 2 packages: apt-get update && apt-get upgrade 2 packages have been upgraded to newer version: libwebkit2gtk-4.0-37, libjavascriptcoregtk-4.0-18 and that resulted in following libraries changed: -/usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18.17.14 +/usr/lib/x86_64-linux-gnu/libjavascriptcoregtk-4.0.so.18.18.5 -/usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37.49.10 +/usr/lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37.53.2 -/usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/injected-bundle/libwebkit2gtkinjectedbundle.so +/usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/injected-bundle/libwebkit2gtkinjectedbundle.so And since this upgrade, liferea suddenly ignores my GTK color theme. The preview of the feed which used to be dark color theme is now default white background I assume something changed in the GTK profile. What GTK attriburte has changed between these versions, and what do i have to change in my GTK theme, so that I get my light-text-on-dark-background back?