FEAT/ADD: Option for colored answer buttons

ftl/core/preferences.ftl

@@ -22,6 +22,7 @@ preferences-scheduling = Scheduling
 preferences-show-learning-cards-with-larger-steps = Show learning cards with larger steps before reviews
 preferences-show-next-review-time-above-answer = Show next review time above answer buttons
 preferences-spacebar-rates-card = Spacebar (or enter) also answers card
+preferences-show-colored-buttons = Show colored border on answer buttons
 preferences-show-play-buttons-on-cards-with = Show play buttons on cards with audio
 preferences-show-remaining-card-count = Show remaining card count
 preferences-some-settings-will-take-effect-after = Some settings will take effect after you restart Anki.

proto/anki/config.proto

@@ -120,6 +120,7 @@ message Preferences {
     uint32 time_limit_secs = 5;
     bool load_balancer_enabled = 6;
     bool fsrs_short_term_with_steps_enabled = 7;
+    bool hide_colored_buttons = 8;
   }
   message Editing {
     bool adding_defaults_to_current_deck = 1;

qt/aqt/forms/preferences.ui

@@ -373,6 +373,19 @@
             <string>preferences_review</string>
            </property>
            <layout class="QVBoxLayout" name="verticalLayout_5">
+            <item>
+             <widget class="QCheckBox" name="hideColoredButtons">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>preferences_show_colored_buttons</string>
+              </property>
+             </widget>
+            </item>
             <item>
              <widget class="QCheckBox" name="showPlayButtons">
               <property name="sizePolicy">

qt/aqt/preferences.py

@@ -137,6 +137,7 @@ class Preferences(QDialog):
         form.showEstimates.setChecked(reviewing.show_intervals_on_buttons)
         form.showProgress.setChecked(reviewing.show_remaining_due_counts)
         form.showPlayButtons.setChecked(not reviewing.hide_audio_play_buttons)
+        form.hideColoredButtons.setChecked(not reviewing.hide_colored_buttons)
         form.interrupt_audio.setChecked(reviewing.interrupt_audio_when_answering)
 
         editing = self.prefs.editing
@@ -172,6 +173,7 @@ class Preferences(QDialog):
         reviewing.show_intervals_on_buttons = form.showEstimates.isChecked()
         reviewing.time_limit_secs = form.timeLimit.value() * 60
         reviewing.hide_audio_play_buttons = not self.form.showPlayButtons.isChecked()
+        reviewing.hide_colored_buttons = not self.form.hideColoredButtons.isChecked()
         reviewing.interrupt_audio_when_answering = self.form.interrupt_audio.isChecked()
 
         editing = self.prefs.editing

qt/aqt/reviewer.py

@@ -931,6 +931,19 @@ 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,
+            )
+            else:
                 return """
 <td align=center><button %s class="answerButton %s" title="%s" data-ease="%s" onclick='pycmd("ease%d");'>\
 %s%s</button></td>""" % (

rslib/src/config/bool.rs

@@ -54,6 +54,8 @@ pub enum BoolKey {
     ShowRemainingDueCountsInStudy,
     #[strum(to_string = "addToCur")]
     AddingDefaultsToCurrentDeck,
+    #[strum(to_string = "hideColor")]
+    HideColoredButtons,
 }
 
 /// This is a workaround for old clients that used ints to represent boolean
@@ -71,6 +73,7 @@ impl Collection {
             // some keys default to true
             BoolKey::InterruptAudioWhenAnswering
             | BoolKey::ShowIntervalsAboveAnswerButtons
+            | BoolKey::HideColoredButtons
             | BoolKey::AddingDefaultsToCurrentDeck
             | BoolKey::FutureDueShowBacklog
             | BoolKey::ShowRemainingDueCountsInStudy

rslib/src/preferences.rs

@@ -97,6 +97,8 @@ 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),
             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
@@ -119,6 +121,10 @@ impl Collection {
             BoolKey::ShowIntervalsAboveAnswerButtons,
             s.show_intervals_on_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(