Added icons to rulesets

lib/core/common.dart

@@ -66,6 +66,22 @@ Color getColorFromGameColor(GameColor color) {
   }
 }
 
+/// Returns [IconData] corresponding to a [Ruleset] enum value.
+IconData getRulesetIcon(Ruleset ruleset) {
+  switch (ruleset) {
+    case Ruleset.highestScore:
+      return Icons.arrow_upward;
+    case Ruleset.lowestScore:
+      return Icons.arrow_downward;
+    case Ruleset.singleWinner:
+      return Icons.emoji_events;
+    case Ruleset.singleLoser:
+      return Icons.sentiment_dissatisfied;
+    case Ruleset.multipleWinners:
+      return Icons.group;
+  }
+}
+
 /// Counts how many players in the [match] are not part of the group
 ///
 /// Returns the text you append after the group name, e.g. " + 5" or an empty

lib/presentation/views/main_menu/match_view/create_match/create_game_view.dart

@@ -222,7 +222,7 @@ class _CreateGameViewState extends State<CreateGameView> {
                     contentDecoration: CustomTheme.standardBoxDecoration,
                     content: StatefulBuilder(
                       builder: (context, setPopupState) => SizedBox(
-                        width: 250,
+                        width: 280,
                         child: Column(
                           mainAxisSize: MainAxisSize.min,
                           crossAxisAlignment: CrossAxisAlignment.start,
@@ -258,6 +258,10 @@ class _CreateGameViewState extends State<CreateGameView> {
                                       child: Row(
                                         spacing: 8,
                                         children: [
+                                          Icon(
+                                            getRulesetIcon(_rulesets[index].$1),
+                                            size: 16,
+                                          ),
                                           Text(
                                             _rulesets[index].$2,
                                             style: const TextStyle(
@@ -278,11 +282,15 @@ class _CreateGameViewState extends State<CreateGameView> {
                         ),
                       ),
                     ),
-                    child: selectedRuleset == null
-                        ? Text(loc.none)
-                        : Text(
-                            translateRulesetToString(selectedRuleset!, context),
-                          ),
+                    child: Row(
+                      children: [
+                        Icon(getRulesetIcon(selectedRuleset!), size: 16),
+                        SizedBox(width: 5),
+                        Text(
+                          translateRulesetToString(selectedRuleset!, context),
+                        ),
+                      ],
+                    ),
                   ),
                 ),