diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index 4617f7f1ea..64801ddc85 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -2114,9 +2114,20 @@ GtkCalendar {
   }
 }
 
-GtkFileChooserDialog .dialog-action-box {
-  border-top: 1px solid $borders_color;
-  &:backdrop { border-top-color: $backdrop_borders_color; }
+GtkFileChooserDialog {
+  .search-bar {
+    background-color: $base_color;
+    border-color: $bg_color;
+    box-shadow: none;
+    &:backdrop {
+      background-color: $backdrop_base_color;
+      border-color: $backdrop_bg_color;
+    }
+  }
+  .dialog-action-box {
+    border-top: 1px solid $borders_color;
+    &:backdrop { border-top-color: $backdrop_borders_color; }
+  }
 }
 
 /***********
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index e92daa3096..7ddd9cefcc 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -2682,6 +2682,13 @@ GtkCalendar {
     border-left-style: none;
     border-bottom-left-radius: 7px; }
 
+GtkFileChooserDialog .search-bar {
+  background-color: #292929;
+  border-color: #393f3f;
+  box-shadow: none; }
+  GtkFileChooserDialog .search-bar:backdrop {
+    background-color: #2c2c2c;
+    border-color: #393f3f; }
 GtkFileChooserDialog .dialog-action-box {
   border-top: 1px solid #1c1f1f; }
   GtkFileChooserDialog .dialog-action-box:backdrop {
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index 59ac51d2c9..2b4503b6fa 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -2674,6 +2674,13 @@ GtkCalendar {
     border-left-style: none;
     border-bottom-left-radius: 7px; }
 
+GtkFileChooserDialog .search-bar {
+  background-color: white;
+  border-color: #ededed;
+  box-shadow: none; }
+  GtkFileChooserDialog .search-bar:backdrop {
+    background-color: #fcfcfc;
+    border-color: #ededed; }
 GtkFileChooserDialog .dialog-action-box {
   border-top: 1px solid #a1a1a1; }
   GtkFileChooserDialog .dialog-action-box:backdrop {