Arch Linux has several sets of SVG icons included with their libreoffice packages. These icons look nice on medium-high DPI screens:
On Ubuntu, there is no "Colibre (SVG)" option in the icon style drop-down, and so I am stuck with badly scaled, pixelated icons. I have looked for additional packages to install that might contain the SVG icon themes, but I haven't found any.
Where can I find the SVG icon packs to install them on my Ubuntu system? LibreOffice is at the same version (6.4.2) on both systems.
Edit: This is Ubuntu 20.04; it was originally installed from an Xubuntu 16.04 disc a few years ago, and has been updated to each release since.