diff --git a/tagstudio/src/qt/ts_qt.py b/tagstudio/src/qt/ts_qt.py
index 8cac543c..217b1364 100644
--- a/tagstudio/src/qt/ts_qt.py
+++ b/tagstudio/src/qt/ts_qt.py
@@ -1330,29 +1330,27 @@ class QtDriver(QObject):
 
             # self.update_thumbs()
 
-    def update_libs_list(self, path: str):
-        # add library to list in SettingItems.LIBS_LIST
+    def update_libs_list(self, path: str | Path):
+        """add library to list in SettingItems.LIBS_LIST"""
         ITEMS_LIMIT = 5
+        path = Path(path)
 
         self.settings.beginGroup(SettingItems.LIBS_LIST)
 
-        current_time = str(time.time())
-        all_libs = {current_time: path}
+        all_libs = {str(time.time()): str(path)}
 
         for item_key in self.settings.allKeys():
             item_path = self.settings.value(item_key)
-            if item_path != path:
+            if Path(item_path) != path:
                 all_libs[item_key] = item_path
 
-        # sort items by the most recent first
+        # sort items, most recent first
         all_libs = sorted(all_libs.items(), key=lambda item: item[0], reverse=True)
 
         # remove previously saved items
         self.settings.clear()
 
-        for idx, (item_key, item_value) in enumerate(all_libs, start=1):
-            if idx > ITEMS_LIMIT:
-                break
+        for item_key, item_value in all_libs[:ITEMS_LIMIT]:
             self.settings.setValue(item_key, item_value)
 
         self.settings.endGroup()
diff --git a/tagstudio/src/qt/widgets/preview_panel.py b/tagstudio/src/qt/widgets/preview_panel.py
index 935775fc..19fef2ac 100644
--- a/tagstudio/src/qt/widgets/preview_panel.py
+++ b/tagstudio/src/qt/widgets/preview_panel.py
@@ -122,7 +122,7 @@ class PreviewPanel(QWidget):
         # 	Qt.TextInteractionFlag.TextSelectableByMouse)
 
         properties_style = (
-            f"background-color:{Theme.COLOR_BG};"
+            f"background-color:{Theme.COLOR_BG.value};"
             f"font-family:Oxanium;"
             f"font-weight:bold;"
             f"font-size:12px;"
@@ -163,7 +163,7 @@ class PreviewPanel(QWidget):
         # find the right trick to only select that particular element.
         scroll_area.setStyleSheet(
             "QWidget#entryScrollContainer{"
-            f"background: {Theme.COLOR_BG};"
+            f"background: {Theme.COLOR_BG.value};"
             "border-radius:6px;"
             "}"
         )
@@ -273,15 +273,15 @@ class PreviewPanel(QWidget):
             button.clicked.connect(open_library_button_clicked(full_val))
             button.setStyleSheet(
                 "QPushButton{"
-                f"background-color:{Theme.COLOR_BG};"
+                f"background-color:{Theme.COLOR_BG.value};"
                 "border-radius:6px;"
                 "text-align: left;"
                 "padding-top: 3px;"
                 "padding-left: 6px;"
                 "padding-bottom: 4px;"
                 "}"
-                f"QPushButton::hover{{background-color:{Theme.COLOR_HOVER};}}"
-                f"QPushButton::pressed{{background-color:{Theme.COLOR_PRESSED};}}"
+                f"QPushButton::hover{{background-color:{Theme.COLOR_HOVER.value};}}"
+                f"QPushButton::pressed{{background-color:{Theme.COLOR_PRESSED.value};}}"
             )
             button.setCursor(Qt.CursorShape.PointingHandCursor)
             layout.addWidget(button)