diff --git a/qt/aqt/browser/sidebar/searchbar.py b/qt/aqt/browser/sidebar/searchbar.py
index b73d90f12..d8f11f6ee 100644
--- a/qt/aqt/browser/sidebar/searchbar.py
+++ b/qt/aqt/browser/sidebar/searchbar.py
@@ -6,7 +6,9 @@ from __future__ import annotations
 import aqt
 import aqt.browser
 import aqt.gui_hooks
+from aqt import colors
 from aqt.qt import *
+from aqt.theme import theme_manager
 
 
 class SidebarSearchBar(QLineEdit):
@@ -18,10 +20,29 @@ class SidebarSearchBar(QLineEdit):
         self.timer.setInterval(600)
         self.timer.setSingleShot(True)
         self.setFrame(False)
+        self.setup_style()
 
         qconnect(self.timer.timeout, self.onSearch)
         qconnect(self.textChanged, self.onTextChanged)
 
+        aqt.gui_hooks.theme_did_change.append(self.setup_style)
+
+    def setup_style(self) -> None:
+        styles = [
+            "padding: 2px",
+            f"border: 1px solid {theme_manager.color(colors.BORDER)}",
+            "border-radius: 5px",
+        ]
+
+        self.setStyleSheet(
+            "QLineEdit { %s }" % ";".join(styles)
+            + f"""
+QLineEdit:focus {{
+    border: 1px solid {theme_manager.color(colors.FOCUS_BORDER)};
+}}
+            """
+        )
+
     def onTextChanged(self, text: str) -> None:
         if not self.timer.isActive():
             self.timer.start()
@@ -36,3 +57,6 @@ class SidebarSearchBar(QLineEdit):
             self.onSearch()
         else:
             QLineEdit.keyPressEvent(self, evt)
+
+    def cleanup(self) -> None:
+        aqt.gui_hooks.theme_did_change.remove(self.setup_style)
diff --git a/qt/aqt/browser/sidebar/tree.py b/qt/aqt/browser/sidebar/tree.py
index ebb3fcb90..972e1555e 100644
--- a/qt/aqt/browser/sidebar/tree.py
+++ b/qt/aqt/browser/sidebar/tree.py
@@ -116,6 +116,7 @@ class SidebarTreeView(QTreeView):
 
     def cleanup(self) -> None:
         self.toolbar.cleanup()
+        self.searchBar.cleanup()
         gui_hooks.flag_label_did_change.remove(self.refresh)
         gui_hooks.theme_did_change.remove(self._setup_style)
 
diff --git a/qt/aqt/data/qt/icons/BUILD.bazel b/qt/aqt/data/qt/icons/BUILD.bazel
index b3f131a17..bf5c44ba4 100644
--- a/qt/aqt/data/qt/icons/BUILD.bazel
+++ b/qt/aqt/data/qt/icons/BUILD.bazel
@@ -33,9 +33,6 @@ copy_mdi_icons(
         # tags
         "tag-outline.svg",
         "tag-off-outline.svg",
-
-        # QComboBox arrow
-        "chevron-down.svg",
     ],
 )
 
diff --git a/qt/aqt/theme.py b/qt/aqt/theme.py
index 976124182..444af9aff 100644
--- a/qt/aqt/theme.py
+++ b/qt/aqt/theme.py
@@ -186,33 +186,7 @@ class ThemeManager:
         gui_hooks.theme_did_change()
 
     def _apply_style(self, app: QApplication) -> None:
-        buf = f"""
-QComboBox,
-QLineEdit {{
-    border: 1px solid {self.color(colors.BORDER)};
-    border-radius: 5px;
-    padding: 2px;
-}}
-QComboBox:focus,
-QLineEdit:focus {{
-    border: 1px solid {self.color(colors.FOCUS_BORDER)};
-}}
-QComboBox:on {{
-    border-bottom: none;
-    border-bottom-right-radius: 0;
-    border-bottom-left-radius: 0;
-}}
-QComboBox::drop-down {{
-    border: 0px; /* This resets the arrow styles */
-    subcontrol-origin: padding;
-    padding: 4px;
-    subcontrol-position: top right;
-    width: 18px;
-}}
-QComboBox::down-arrow {{
-    image: url(icons:chevron-down.svg);
-}}
-        """
+        buf = ""
 
         if is_win and platform.release() == "10":
             # day mode is missing a bottom border; background must be