diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index c6f35eb672..be1e8edb1a 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -456,14 +456,14 @@ $_dot_color: if($variant=='light', $selected_bg_color,
           @include button(backdrop-active, $b_color, white);
         }
         &:insensitive {
-          @include button(backdrop-insensitive, $b_color,white);
+          @include button(backdrop-insensitive);
           &:active, &:checked {
             @include button(backdrop-insensitive-active, $b_color, white);
           }
         }
       }
       &:insensitive {
-        @include button(insensitive, $b_color, white);
+        @include button(insensitive);
         &:active, &:checked {
           @include button(insensitive-active, $b_color, white);
         }
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index 5c74a4c070..c40df3e089 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -545,9 +545,9 @@ GtkCalendar.header .button.titlebutton {
         background-image: linear-gradient(to bottom, #184472);
         box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(238, 238, 236, 0); }
       .button.suggested-action:backdrop:insensitive {
-        color: #6f90b2;
-        border-color: #0b1e33;
-        background-image: linear-gradient(to bottom, #22558a);
+        color: #5d6767;
+        border-color: #1e2222;
+        background-image: linear-gradient(to bottom, #323636);
         text-shadow: none;
         icon-shadow: none;
         box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(238, 238, 236, 0); }
@@ -561,9 +561,9 @@ GtkCalendar.header .button.titlebutton {
           .button.suggested-action:backdrop:insensitive:active > GtkLabel, .button.suggested-action:backdrop:insensitive:checked > GtkLabel {
             color: inherit; }
     .button.suggested-action:insensitive {
-      color: #90aac4;
-      border-color: #0b1e33;
-      background-image: linear-gradient(to bottom, #22558a);
+      color: #939695;
+      border-color: #1c1f1f;
+      background-image: linear-gradient(to bottom, #323636);
       text-shadow: none;
       icon-shadow: none;
       box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(238, 238, 236, 0.1); }
@@ -653,9 +653,9 @@ GtkCalendar.header .button.titlebutton {
         background-image: linear-gradient(to bottom, #a60c0c);
         box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(238, 238, 236, 0); }
       .button.destructive-action:backdrop:insensitive {
-        color: #d26565;
-        border-color: #5e0707;
-        background-image: linear-gradient(to bottom, #bb1313);
+        color: #5d6767;
+        border-color: #1e2222;
+        background-image: linear-gradient(to bottom, #323636);
         text-shadow: none;
         icon-shadow: none;
         box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(238, 238, 236, 0); }
@@ -669,9 +669,9 @@ GtkCalendar.header .button.titlebutton {
           .button.destructive-action:backdrop:insensitive:active > GtkLabel, .button.destructive-action:backdrop:insensitive:checked > GtkLabel {
             color: inherit; }
     .button.destructive-action:insensitive {
-      color: #dd8989;
-      border-color: #5e0707;
-      background-image: linear-gradient(to bottom, #bb1313);
+      color: #939695;
+      border-color: #1c1f1f;
+      background-image: linear-gradient(to bottom, #323636);
       text-shadow: none;
       icon-shadow: none;
       box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(238, 238, 236, 0.1); }
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index fb7b37f715..f7f469d3e5 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -537,9 +537,9 @@ GtkCalendar.header .button.titlebutton {
         background-image: linear-gradient(to bottom, #2a76c6);
         box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(255, 255, 255, 0); }
       .button.suggested-action:backdrop:insensitive {
-        color: #9ac1e9;
-        border-color: #65a0de;
-        background-image: linear-gradient(to bottom, #65a0de);
+        color: #c7c7c7;
+        border-color: #a8a8a8;
+        background-image: linear-gradient(to bottom, #f4f4f4);
         text-shadow: none;
         icon-shadow: none;
         box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(255, 255, 255, 0); }
@@ -553,9 +553,9 @@ GtkCalendar.header .button.titlebutton {
           .button.suggested-action:backdrop:insensitive:active > GtkLabel, .button.suggested-action:backdrop:insensitive:checked > GtkLabel {
             color: inherit; }
     .button.suggested-action:insensitive {
-      color: #b2cfee;
-      border-color: #1c5187;
-      background-image: linear-gradient(to bottom, #65a0de);
+      color: #8d9091;
+      border-color: #a1a1a1;
+      background-image: linear-gradient(to bottom, #f4f4f4);
       text-shadow: none;
       icon-shadow: none;
       box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px white; }
@@ -645,9 +645,9 @@ GtkCalendar.header .button.titlebutton {
         background-image: linear-gradient(to bottom, #d51010);
         box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(255, 255, 255, 0); }
       .button.destructive-action:backdrop:insensitive {
-        color: #f58888;
-        border-color: #f14949;
-        background-image: linear-gradient(to bottom, #f14949);
+        color: #c7c7c7;
+        border-color: #a8a8a8;
+        background-image: linear-gradient(to bottom, #f4f4f4);
         text-shadow: none;
         icon-shadow: none;
         box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(255, 255, 255, 0); }
@@ -661,9 +661,9 @@ GtkCalendar.header .button.titlebutton {
           .button.destructive-action:backdrop:insensitive:active > GtkLabel, .button.destructive-action:backdrop:insensitive:checked > GtkLabel {
             color: inherit; }
     .button.destructive-action:insensitive {
-      color: #f8a4a4;
-      border-color: #8e0b0b;
-      background-image: linear-gradient(to bottom, #f14949);
+      color: #8d9091;
+      border-color: #a1a1a1;
+      background-image: linear-gradient(to bottom, #f4f4f4);
       text-shadow: none;
       icon-shadow: none;
       box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px white; }