diff --git a/card/back.html b/card/back.html
index 4ad1ebd..1e34d0f 100644
--- a/card/back.html
+++ b/card/back.html
@@ -28,7 +28,8 @@
                     wrongwrong: 'correct', // Should be wrong and got marked as wrong
                     correctcorrect: 'correct', // Should be correct and got marked as correct
                     wrongcorrect: 'wrong', // Should be wrong but got marked as correct
-                    correctwrong: 'wrong' // Should be correct but got marked as wrong
+                    correctwrong: 'wrong', // Should be correct but got marked as wrong
+                    eithernone: "wrong" // Kprim was marked neither correct nor wrong
                 }
             },
             atable: {
@@ -38,7 +39,8 @@
                     wrongwrong: 'correct', // Should be wrong and got marked as wrong
                     correctcorrect: 'correct', // Should be correct and got marked as correct
                     wrongcorrect: 'wrong', // Should be wrong but got marked as correct
-                    correctwrong: 'wrong' // Should be correct but got marked as wrong
+                    correctwrong: 'wrong', // Should be correct but got marked as wrong
+                    eithernone: "wrong" // Kprim was marked neither correct nor wrong
                 }
             }
         }
@@ -81,6 +83,8 @@
                             qrows[(type != 0) ? i : i + 1].setAttribute("class", options.qtable.colors.wrongcorrect);
                         } else if (solutions[i] && answers[i] === "0"){
                             qrows[(type != 0) ? i : i + 1].setAttribute("class", options.qtable.colors.correctwrong);
+                        } else if (type == 0 && answers[i] === "-") {
+                            qrows[(type != 0) ? i : i + 1].setAttribute("class", options.qtable.colors.eithernone);
                         }
                     }
                 }
@@ -105,6 +109,8 @@
                         arows[(type != 0) ? i : i + 1].setAttribute("class", options.atable.colors.wrongcorrect);
                     } else if (solutions[i] && answers[i] === "0") {
                         arows[(type != 0) ? i : i + 1].setAttribute("class", options.atable.colors.correctwrong);
+                    } else if (type == 0 && answers[i] === "-") {
+                        arows[(type != 0) ? i : i + 1].setAttribute("class", options.atable.colors.eithernone);
                     }
                 }
                 //Count correct answers.
diff --git a/src/multiple_choice/config.py b/src/multiple_choice/config.py
index e0efc72..b4c0b8f 100644
--- a/src/multiple_choice/config.py
+++ b/src/multiple_choice/config.py
@@ -44,8 +44,8 @@
 
 # default configurations
 # TODO: update version number before release
-default_conf_local = {'version': "2.4.3"}
-default_conf_syncd = {'version': "2.4.3"}
+default_conf_local = {'version': "2.5.0"}
+default_conf_syncd = {'version': "2.5.0"}
 
 def getSyncedConfig():
     # Synced preferences
diff --git a/src/multiple_choice/template.py b/src/multiple_choice/template.py
index 1249e84..ac131f2 100644
--- a/src/multiple_choice/template.py
+++ b/src/multiple_choice/template.py
@@ -306,7 +306,8 @@
                     wrongwrong: 'correct', // Should be wrong and got marked as wrong
                     correctcorrect: 'correct', // Should be correct and got marked as correct
                     wrongcorrect: 'wrong', // Should be wrong but got marked as correct
-                    correctwrong: 'wrong' // Should be correct but got marked as wrong
+                    correctwrong: 'wrong', // Should be correct but got marked as wrong
+                    eithernone: "wrong" // Kprim was marked neither correct nor wrong
                 }
             },
             atable: {
@@ -316,7 +317,8 @@
                     wrongwrong: 'correct', // Should be wrong and got marked as wrong
                     correctcorrect: 'correct', // Should be correct and got marked as correct
                     wrongcorrect: 'wrong', // Should be wrong but got marked as correct
-                    correctwrong: 'wrong' // Should be correct but got marked as wrong
+                    correctwrong: 'wrong', // Should be correct but got marked as wrong
+                    eithernone: "wrong" // Kprim was marked neither correct nor wrong
                 }
             }
         }
@@ -359,6 +361,8 @@
                             qrows[(type != 0) ? i : i + 1].setAttribute("class", options.qtable.colors.wrongcorrect);
                         } else if (solutions[i] && answers[i] === "0"){
                             qrows[(type != 0) ? i : i + 1].setAttribute("class", options.qtable.colors.correctwrong);
+                        } else if (type == 0 && answers[i] === "-") {
+                            qrows[(type != 0) ? i : i + 1].setAttribute("class", options.qtable.colors.eithernone);
                         }
                     }
                 }
@@ -383,6 +387,8 @@
                         arows[(type != 0) ? i : i + 1].setAttribute("class", options.atable.colors.wrongcorrect);
                     } else if (solutions[i] && answers[i] === "0") {
                         arows[(type != 0) ? i : i + 1].setAttribute("class", options.atable.colors.correctwrong);
+                    } else if (type == 0 && answers[i] === "-") {
+                        arows[(type != 0) ? i : i + 1].setAttribute("class", options.atable.colors.eithernone);
                     }
                 }
                 //Count correct answers.