How do you change upower battery icon? Or remove it completely?

[Disr0]

I've already tried changing the gtk theme and specifying the icon with -gtk-icon-theme, none of it have had any effect
If there's no way to change the icon, maybe someone knows the way to disable it completely? display:none and visibility:hidden just doesn't work

[JakeStanger]

The icon is loaded from the icon_theme you specify in your ironbar config. Hiding the icon should also definitely be possible. Feel free to share your CSS and I can have a look at where you're going wrong.