fix(toolbar): button distance and colors.

css/_toolbars.scss

@@ -73,7 +73,7 @@
         .button-group-center {
             justify-content: center;
             .toolbox-icon {
-                margin: 0px 12px;
+                margin: 0px 4px;
             }
         }
 

css/_variables.scss

@@ -34,8 +34,8 @@ $defaultDarkColor: #2b3d5c;
  */
 $defaultToolbarSize: 50px;
 $newToolbarBackgroundColor: rgba(22, 38, 55, 0.8);
-$newToolbarButtonHoverColor: rgba(42, 58, 75, 0.15);
-$newToolbarButtonToggleColor: rgba(42, 58, 75, 0.2);
+$newToolbarButtonHoverColor: rgba(255, 255, 255, 0.15);
+$newToolbarButtonToggleColor: rgba(255, 255, 255, 0.2);
 $AOTToolbarButtonHoverColor: rgba(14, 20, 35, 0.6);
 $AOTToolbarButtonToggleColor: rgba(14, 20, 35, 1);
 $newToolbarFontSize: 24px;