How can i install icon sets on my mac

on my mac i’m using libre office “vanilla”. there is only the “tango” icon set available. how can i install other icon sets?

As far as I am aware you don’t need to install ANY icon sets.

I’ve been using LO Version: 4.4.5.2 on my iMAC running OSX 10.10.x
for over 6 months and I have ALL the icon sets available.

I regularly use Glaxay as my preference via:
Preferences → View → selecting the right hand drop down under
Icon size & style.

If you don’t see:

Crystal

Galaxy

HiContrast

Oxygen

Sifir

Tango

It might be indicative of a bad installation and I suggest you re-inistall LO.