FIX: Missing key in db and related error popup (thanks @iamllama)

proto/anki/config.proto

@@ -57,6 +57,7 @@ message ConfigKey {
     LOAD_BALANCER_ENABLED = 26;
     FSRS_SHORT_TERM_WITH_STEPS_ENABLED = 27;
     FSRS_LEGACY_EVALUATE = 28;
+    SHOW_COLORED_BUTTONS = 29;
   }
   enum String {
     SET_DUE_BROWSER = 0;

qt/aqt/reviewer.py

@@ -932,7 +932,7 @@ timerStopped = false;
                 else ""
             )
 
-            if not self.mw.col.conf["showColor"]:
+            if not self.mw.col.get_config_bool(Config.Bool.SHOW_COLORED_BUTTONS):
                 return """
 <td align=center><button %s title="%s" data-ease="%s" onclick='pycmd("ease%d");'>\
 %s%s</button></td>""" % (

rslib/src/backend/config.rs

@@ -40,6 +40,7 @@ impl From<BoolKeyProto> for BoolKey {
             BoolKeyProto::LoadBalancerEnabled => BoolKey::LoadBalancerEnabled,
             BoolKeyProto::FsrsShortTermWithStepsEnabled => BoolKey::FsrsShortTermWithStepsEnabled,
             BoolKeyProto::FsrsLegacyEvaluate => BoolKey::FsrsLegacyEvaluate,
+            BoolKeyProto::ShowColoredButtons => BoolKey::ShowColoredButtons,
         }
     }
 }

rslib/src/config/bool.rs

@@ -54,7 +54,6 @@ pub enum BoolKey {
     ShowRemainingDueCountsInStudy,
     #[strum(to_string = "addToCur")]
     AddingDefaultsToCurrentDeck,
-    #[strum(to_string = "showColor")]
     ShowColoredButtons,
 }