$window_thumbnail_label_color: transparentize($osd_bg_color, 0.4);
-$window_close_button_color: darken(transparentize($osd_bg_color, .05), 3%);
+$window_close_button_color: lighten(transparentize($osd_bg_color, .05), 7%);
$window_close_button_size: 30px;
$window_close_button_padding: 3px;
background-color: $window_close_button_color;
color: $osd_fg_color;
border-radius: 99px;
+ box-shadow: 0 2px 4px 0 $shadow_color;
padding: $window_close_button_padding;
height: $window_close_button_size;
width: $window_close_button_size;