Active item not highlighted when cycling windows (ALT-TAB, xfwm-tabwin)

[muello]

Thanks for putting so much work into a beautiful theme.

One issue that came up on my install of Mc-OS-CTLina-XFCE-Dark: when I press ALT-TAB to cycle through open windows, the popup is uniformly grey. The only thing showing which item is currently active is the text underneath:

When xfwm is set to cycle through windows in a list, distinguishing the active item becomes entirely impossible:

Do other people have this issue?

In case anyone finds it useful, my hacky workaround has been to add the following to gtk-3.0/gtk.css

/* Muello's tabwin hack */
/* mostly adapted from Greybird-dark-mx/gtk-3.0/gtk.css */
/* Xfwm4's alt-tab dialog, aka "tabwin" */

/* The containing popup*/
#xfwm-tabwin { padding: 12px;
background-image: none;
background-color: rgba(90, 90, 90, 0.95);
color: shade(#ffffff, 0.65);
text-shadow: 0px 1px rgba(90, 90, 90, 0.95);
border-radius: 12px;
/* Set the application icon- and preview-size to 64px */
-XfwmTabwinWidget-icon-size: 64px;
-XfwmTabwinWidget-preview-size: 64px; }

/*item labels (except in list mode, they only show when active or hovering)*/
#xfwm-tabwin button { background-image: none;
/* color: #ffffff;
/* font-weight: bold;
text-shadow: 0px 1px rgba(0, 0, 0, 0.8); */
border: 1px;
border-radius: 4px;
}

/*background of item currently focused ("active")*/
#xfwm-tabwin button:active, #xfwm-tabwin button:checked, #xfwm-tabwin button:active:hover, #xfwm-tabwin button:checked:hover {
background: rgba(157, 163, 163, 0.8);
box-shadow: 1px 1px rgba(80, 80, 80, 0.2); }

/* mouse hover*/
#xfwm-tabwin button:hover { background: rgba(50,105,164,0.96) /*#0c3764*/;
transition-duration: 50ms; }

The results: