(In reply to Hossein from comment #8)
> This is the result from my system:
>
> $ file ~/.config/libreoffice/4/cache/breeze_dark_svg/200/res/*.png
So the SVG *are* being resampled and scaled 200% into a new set of scale appropriate PNG icons correctly, but then are not being used by the DE as the UI is scaled.
(In reply to Hossein from comment #8) libreoffice/ 4/cache/ breeze_ dark_svg/ 200/res/ *.png
> This is the result from my system:
>
> $ file ~/.config/
So the SVG *are* being resampled and scaled 200% into a new set of scale appropriate PNG icons correctly, but then are not being used by the DE as the UI is scaled.