The spell bar and icons have been made larger (approx 150%) and given a new background.
The included hotbutton window must be used if you plan on dragging spell gems to hotbars, otherwise the icons will not scale properly.
Note that the default size for the hotbuttons has been increased, so you may want to change the button size.
There are notes in the readme file if you are using custom icons or a custom EQUI_Animations file.
The window border shown in the screen shot is from my RueUI_Charcoal, located in the complete UI section (functional). The default borders work fine as well.