Hello i try custom panel (panel-background.svg). The official documentation (https://techbase.kde.org/Development/Tu ... emeDetails) says: " For example the panel placed on the left side of the screen uses the "west" prefix (west-topleft, west-topright, etc.). ", but this prefix is doesn't work.
When i add prefix side then the image actually disappears from the panel or prefix ignored.

I try this trik in live KDE neon.
Does anyone know why this is so?