diff --git a/qt/aqt/reviewer.py b/qt/aqt/reviewer.py
index 023f6a184..9d7345e91 100644
--- a/qt/aqt/reviewer.py
+++ b/qt/aqt/reviewer.py
@@ -931,30 +931,30 @@ timerStopped = false;
                 if aqt.mw.pm.get_answer_key(i)
                 else ""
             )
-            
+
             if self.mw.col.conf["hideColor"]:
                 return """
 <td align=center><button %s title="%s" data-ease="%s" onclick='pycmd("ease%d");'>\
 %s%s</button></td>""" % (
-                extra,
-                key,
-                i,
-                i,
-                label,
-                due,
-            )
+                    extra,
+                    key,
+                    i,
+                    i,
+                    label,
+                    due,
+                )
             else:
                 return """
 <td align=center><button %s class="answerButton %s" title="%s" data-ease="%s" onclick='pycmd("ease%d");'>\
 %s%s</button></td>""" % (
-                extra,
-                button_class,
-                key,
-                i,
-                i,
-                label,
-                due,
-            )
+                    extra,
+                    button_class,
+                    key,
+                    i,
+                    i,
+                    label,
+                    due,
+                )
 
         buf = "<center><table cellpadding=0 cellspacing=0><tr>"
         for ease, label in self._answerButtonList():
diff --git a/rslib/src/preferences.rs b/rslib/src/preferences.rs
index 97be7b02e..b1e40724c 100644
--- a/rslib/src/preferences.rs
+++ b/rslib/src/preferences.rs
@@ -97,8 +97,7 @@ impl Collection {
             show_remaining_due_counts: self.get_config_bool(BoolKey::ShowRemainingDueCountsInStudy),
             show_intervals_on_buttons: self
                 .get_config_bool(BoolKey::ShowIntervalsAboveAnswerButtons),
-            hide_colored_buttons: self
-                .get_config_bool(BoolKey::HideColoredButtons),
+            hide_colored_buttons: self.get_config_bool(BoolKey::HideColoredButtons),
             time_limit_secs: self.get_answer_time_limit_secs(),
             load_balancer_enabled: self.get_config_bool(BoolKey::LoadBalancerEnabled),
             fsrs_short_term_with_steps_enabled: self
@@ -121,10 +120,7 @@ impl Collection {
             BoolKey::ShowIntervalsAboveAnswerButtons,
             s.show_intervals_on_buttons,
         )?;
-        self.set_config_bool_inner(
-            BoolKey::HideColoredButtons,
-            s.hide_colored_buttons,
-        )?;
+        self.set_config_bool_inner(BoolKey::HideColoredButtons, s.hide_colored_buttons)?;
         self.set_answer_time_limit_secs(s.time_limit_secs)?;
         self.set_config_bool_inner(BoolKey::LoadBalancerEnabled, s.load_balancer_enabled)?;
         self.set_config_bool_inner(