So I've changed my GUI to a different colour, but when I hover over buttons with the mouse (in the control panel and icon bar specifically) there are these black square outlines that highlight each button. This is fine. But after I take the cursor off of the button the black box is replaced with a gray one and stays until I close the control panel or icon bar. This really clashes with the colour scheme I've got going on here. Any idea where to get rid of it? It's been plaguing me for a couple nights now.
(ignore the grey masks on the inventory buttons, I still haven't ironed that out yet from removing the COMMAND verb)