Rated 4 out of 5 stars

The theme is great but wish to have smaller icons.

This review is for a previous version of the add-on (3.0.1). 

Hello Ayna,
Thanks.
If you want small icons with Firefox, install Noia Fox options (https://addons.mozilla.org/en-US/firefox/addon/noia-fox-options/). There is an option to enable small icons with this add-on.