"iconsOnly" doesn't center the icon in the view container

[Drakuwa]

I'm on version 2.3.1 and I've tried every combination of iconsOnly, adding it as a View attribute: app:bb_behavior="iconsOnly", or adding it in every tab item separately - it never works as expected, both on a Samsung Galaxy S8 and a OnePlus 5.

I have 4 tabs (I've tried tabs with and without a title) and my layout is defined as:

<com.roughike.bottombar.BottomBar
android:id="@+id/bottom_navigation_menu"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_alignParentBottom="true"
app:bb_activeTabColor="@color/black"
app:bb_behavior="iconsOnly"
app:bb_inActiveTabAlpha="0.8"
app:bb_inActiveTabColor="@color/grey_tint_3"
app:bb_showShadow="true"
app:bb_tabXmlResource="@xml/bottom_navigation_menu" />

...and I've even tried different heights, still, the icons are top aligned. I'm using 24dp icons generated in the Asset Studio with 0 padding, and the only difference I see with and without iconsOnly is that the icons change size (larger when using iconsOnly), but still remain aligned in the top section of the view container.

The only manipulation I do on the BottomBar is adding OnTabSelect and OnTabReselect listeners...