Sizing and color corrections

Author: Elbullazul

gtk-3.0/gtk-widgets.css

@@ -54,10 +54,6 @@ image, image:disabled, label, label:disabled, box, box:disabled {
 label selection {
   background-color: @theme_selected_bg_color;
   color: @theme_selected_fg_color; }
-label.separator {
-  color: @borders; }
-  label.separator:backdrop {
-    color: @unfocused_borders; }
 label.dim-label, label.separator, popover label.separator, popover.background label.separator, label:disabled {
   opacity: 0.55; }
 
@@ -915,6 +911,11 @@ button.circular, button.circular-button {
   border-radius: 50%;
   -gtk-outline-radius: 50%; }
 
+stackswitcher button.circular, stackswitcher button.text-button.circular {
+  min-width: 32px;
+  min-height: 32px;
+  padding: 0; }
+
 printdialog paper {
   border: 1px solid @borders;
   background: @light_shadow;