En general, LibreOffice's interface hasn't changed much throughout its history. But a remarkable visual element that has changed in the recent version of the suite and is the use of new UI icons.
Not only that, since actually the user has the ability to switch between Sifr, Oxygen, the classic icons, the new icons, Tango, among others.
But then what if they want to use another set of icons that is not among the options? Is that possible?
Although it is not very usual to change the LibreOffice icon set, you should know that there are packages of these on the network.
How to change LibreOffice icons?
First, you should know that these icon changes in the suite, They can be done from the following path "Tools> Options> View".
Here, you can select an icon theme from a drop down list, as well as being able to change the icon size and some other visual adjustments.
Changes do not require a program restart. Since there are some very cool options here, including monochrome icons.
Some of these will be available by default, and others through the repositories of most Linux distributions.
If you want to use completely custom and random icons, you must first do a little searching around the web, to find the ones to your liking.
Although there are not many options, nor options compatible with the latest versions of LibreOffice.
One of the packages that we can find on the web is Sif, which is also available through the repositories.
Another very popular package is Papirus, which you can also find within the repositories of your Linux distribution.
How to get new themes?
It is important to mention that the themes of the icons that you can find on the net come in ZIP files and real LibreOffice extensions (oxt files). So in general, the easiest to install are those that come in a zip file.
Since extensions sometimes conflict with the LibreOffice version.
If you find a topic in oxt, you can install it through the LibreOffice interface. So just click on add, select the downloaded extension.
After that we must restart the program. Once this is done, we are going to go to "Tools> Options and then View" and here we are going to change to the theme just downloaded.
In ZIP format
As I mentioned recently, those icon packs that you find in a ZIP file format, we will install it manually. So the first thing to do is unzip the package.
And after that they just need to copy the files to:
Your LibreOffice installation it can also be located on a non-standard route and / or use additional directories to load your settings, in which case you will need to copy the files there or, to keep things tidy, create symbolic links.
This is what the Papirus icon theme script does, taking as an example, it has an additional location for themes:
After that they go back to the path in the LibreOffice options menu to change the icons.
LibreOffice icons aren't something you spend a lot of time thinking or focusing on, but on Linux, where you have a lot of freedom to choose icon icons for the desktop, having a good common set for both applications is always satisfying.
LibreOffice does have a decent variety, but it may be to extend it with third-party icon themes.
But it's still good to see that LibreOffice has a modular nature, And that means there is a lot of potential hidden in its seemingly static and somewhat archaic interface. Anyway, I hope you like this.
As for the websites where you can find icon themes, there are several, since in case of third parties you can find them on GitHub, DeviantArt and many others. But one central place is the LibreOffice extensions page.